US gallon,gallon,kg之间的换算

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

gre 125 gram per liter 转换成 ounce per gallon,gram per liter 是指 gram/liter
1 ounce =a gram ,1 gallon = b liter,是等于 125 *（1/a) / (1/b) ounce per gallon?

____ economically,one gallon of oil will last at least two months.
A.Using B.Used C.Having used D.To be used

two half-gallon cartons是什么意思
是两个（半加仑）,还是两个半加仑?

英语翻译
- 1/3 gallon shape bottle with 1 color in 1 location imprint.I will need 1,000 and 2,500 units quoted.
- 16.9 oz stainless steel with 1 color in 1 location imprint.I will need 400,000 and 600,000 units quoted.
- 11 oz white ceramic mug with 2 color in 1 location imprint.I will need 40,000 and 50,000 units quoted.
- 16 oz stainless steel tumbler with 2 color in 1 location imprint.I will need 40,000 and 50,000 units quoted.
- 32 oz stainless steel tumbler with 2 color in 1 location imprint.I will need 40,000 and 50,000 units quoted.
- 16 oz polycarbonate water bottle with 1 color in 1 location imprint.I will need 30,000 and 40,000 units quoted.
- 24 oz bike water bottle with 1 color in 1 location imprint.I will need 30,000 and 40,000 units quoted.
- 36 oz,clear water bottle with 1 color in 1 location imprint.I will need 30,000 and 40,000 units quoted.
- red stainless steel bottle with car and caribiner with 2 color in 1 location imprint.I will need 33,000 units quoted.

SAT问题：Milk costs x cents per half-gallon and y cents per gallon. If a gallon of milk costs z c
Milk costs x cents per half-gallon and y cents per gallon. If a gallon of milk costs z cents less than 2 half-gallons, which of the following equations must be true?

A. x – 2y + z = 0
B. 2x – y + z = 0
C. x – y – z = 0
D. 2x – y – z = 0
E. x + 2y – z = 0
which is right?

英文数学题,求高手,急
A truck gets
500/x
miles per gallon (mpg) when driven at a constant speed of x mph, where
40 ≤ x ≤ 80. If the price of fuel is $2.80/gal and the driver is paid $17/hr, at what speed is it most economical for the trucker to drive? (Round your answer to two decimal places.)

英语翻译
【If 2 percent of a 12-gallon solution is sodium,how many gallons of pure sodium must be added to make a new solution that is 6 percent sodium?】
请翻译上面【】裏面的内容,

interested in a price quote on following items .5 gallon food grade pail with lid.25 gal water barrel.30 gal watter barrel.55 gallon water barrel.5 gal camping jug with spigot.I would be interested to buy 10 pallet buckets ,2 pallets camp jug and 20 each barrell let me know ...what price including freight...

KI、Drum、Gallon和Barrel之间的换算关系
这是化工中管道的一个问题，我也不知怎么弄？是不是有换算关系，