Gasoline in the wallet and ship our money and uh huh make he

英译汉,请厉害的人士帮忙
This mower uses 1 gallon of gasoline per hour and cuts 3 units of lawn per hour.
a)x05Verify that the production functions for the two mowers are as follows:
Assume that z1 is hours of labor,z2 is gallons of gasoline,and z3 and z4 are
the hours of the small mower and the large mower,respectively.
b) Derive the cost functions
c) Show that using the small mower is a cheaper way to cut grass if 2w1＜W4
一3w3.Why is this result independent of the price of gasoline?
d) How high a price must our college student receive for cutting a unit of lawn
in order to induce her to set up her own lawn-mowing firm rather than work
in the family business?
5.Assume that a firm uses two types of input in the production of a certain commodity.
What is the maximum output if the marginal product of input 1 is MPI＝100X2一X1
and the marginal product of input 2 is MP2＝100X1一凡,the total amount that can be
spent on inputs is $1,000,the price of input 1 is $2,and the price of input 2 is $5?
6.Suppose that a firm has long-run total costs of $1,000 for producing 100 units of out-
put.The two inputs for production are labor and capital.Labor costs $10 per unit,and
capital costs $10 per unit.The firm is currently producing 100 units of output and is
using the cost-minimizing combination of 50L and 50K for labor and capital.
a) On an isoquant diagram,show that an increase in output from 100 units to
150 units will result in higher short-run than long-run total costs,average
costs,and marginal costs.
b) Show that a decrease in output from 100 units to 50 units will result in higher
short-run than long-run total costs and average costs but higher long-run than
short-run marginal costs
c) Give an intuitive explanation for these relationships between the short-run
and long-run cost curves.
7.Suppose that a firm produces a product with two inputs:labor and capital.Labor costs
$3 per unit of input,and capital costs $5 per unit.The firm maximizes output subject
to the constraint that it does not spend more than $1,000.
a) Draw a graph depicting the firm's cost constraint.Give the firm a set of con-
vex isoquants,and show an optimum for the firm on the graph.Label the op-
timal quantities of capital and labor and the isoquant associated with the opti-
mum so that the firm is producing 100 units of output.
b) Using the same isoquants that you used in Part a,show an optimum for the
firm that minimizes costs subject to the constraint that y＝100.What is the
level of costs at the new optimum?How do the optimal quantities of capital
and labor here compare to those you found in Part

英语翻译
oil
gasoline produced by simple distillation of crude oil or via conversion processes such as thermal or catalytic cracking contains a large variety of undesirable impurities
,which are different both in quality and quantity depending on the manufacturing process applied.the quantity varies between a few to sone thousand of parts per million.,and their influence on the properties of the gasoline may be quiet dissimilar.Examples of such impurities which are found in gasoline fractions and in particular in catalytically cracked material are:

句中的than的用法
what better way is there to sell gasoline than to say that using it is like putting a tiger in your tank.

Gasoline (汽油) prices are getting higher and higher. The prices make it hard for drivers to afford the fuel. One group held a special event to display（展示）new kinds of cars . The new cars are different and they can run on many different kinds of fuels . Some of these cars are called hybrids(混合动力). They can run on different kinds of fuels . One kind of them runs on a special fuel cell which is filled with a gas called hydrogen(氢气). _ __ 小题1: __ _ They are very clean , and don’t give off bad fumes(烟雾) when they run . The man who makes fuel cell cars is excited about the technology .__ 小题2: _ __ Once we use oil up , it will take millions of years for more oil to form. Since gasoline is made from oil , that could be a problem for companies that make traditional cars , and for drives . __小题3:__ Buses that run on hydrogen fuel cell power are being tested on the road . They could become a common form of transportation in the near future A. The fuel cell cars are also better in another way . B. However, it won’t be a problem for cars that run on fuel cells .. C. He says we will never run out the fuel, but we may run out of oil. 小题4:What do you think of this kind of new cars ? Why ?

英语首字母填空
After hearing that the price of the gasoline will get h___ agin,some people in Guangdong went to the gasoline station to b___ the gasoline.Here is a story to b___ the gasoline.Here is a story just for fun.Mr Zhang's home is 5 kilomenters away from his work place.He usually goes to work by b___.But last night he p___ computer games till 12 o' clock and got up l___ this morning.When he went downstairs,he found his bike was broken.B___ luck!He had to ask a rickshaw for help.The puller of the rickshaw was tired when they got to Mr Zhang's office.He asked 10 yuan for his work.Mr Zhang was s___ to hear that.He said,"Isn't it 1 yuan every kilometer?"The puller became unhappy,"Dont's you know the price of the gasoline is much higher now?""But it has n___ to do with your work"Mr Zhang said."Nothing?Don't you know I d___ my car to go to work this morning?" the puller shouted.Mr Zhang,the poor man,p___ 10yuan for it at last.

能源算式,单位转换,
A 1600kg gasoline-powered vehicle require about 3.5MJ of primary energy to travel 1km.
If the vehicle travels a total of 300,000km during its life,
what is the ratio of the mass of CO2 emitted to the mass of the vehicle?
(p.s.assumed that the gasoline is octane C8H18,find out its energy/heat of combustion
and the by-products of the combustion of methane is CO2 and H2O)

英语翻译
Many people may be driving less because of high gasoline prices.But transportation officials worry that less demand for gasoline will mean shortages of money from fuel taxes that support roads.（Use of public transportation,though,is up.The American Public Transportation Association says it increased three percent this year)

Mary's friend,Tom,who worked at a gasoline station
Mary's friend,Peter,who worked at a gasoline station during the summer.为什么who要删去?这是非限定定语从句吗?

英语翻译
a vehicle uses 1 tablespoon of gasoline to drive 125 yards.
how many miles can the vehicle travel per gallon?
round your answer to the nearest mile.
hint:
there are 256 tablespoons in a gallon.

we should raise the price of gasoline to the prohibitive level to make car-driving expensive enough
翻译一下意思,谢谢
prohibitive怎么翻才好

assume the following data describe the gasoline market
price per gallon($) 1.00 1.25 1.50 1.75 2.00 2.25 2.50
quantity demanded 26 25 24 23 22 21 20
quantity supplied 16 20 24 28 32 36 40
(a) what is the equilibrium price?
(b) if supply at every price reduced by 5 gallons,what will the new equilibrium price be
(c) if the *** freezes the price of gasoline at its initial price,how much of a surplus or shortage will exist when supply is reduced as described above?
(d) illustrate your answer on a gragh

they played for their supper and their gasoline on an interesting musical instrument that White had
made out of some pieces of wire and an old shoe. 这句话中文意思

翻译：Petroleum was not then used to make gasoline or heating oil.?

关于某种英语倒装句
It has less potential energy than does gasoline.和Hydrogen burns
~~~~~~~~~
much more cleanly than do other fuels.
~~~~~~~~
这两句为什么do要提前呢?