杨静今年5月1日把3000元存入银行,定期2年利率是百分之2.29.他可以取出税后利息多少元?（过程）

Respectful editor:
I'm a student of number 4 middle school in WenZhou,my name is YangJing.There is a chear river with green grass and red flower on both sides near my home.We often swim in the river,but with the development of modern industry,factories near the river let toxic gas and polluted water.All of that made the river polluted,flower and grass are dead,the water in the river smells stink.I appeal all of us to protect our environment,and do something to prevents the pollution.
YangJing