James deposits $150 at the end of each month in an account paying 2.52% compounded monthly. After 5 years he transfer what he's saved into a 5-year certificate of deposit paying 2.65% compounded twice each month.

1.How much does James save during the first investment period

2.How much is saved in the second investment period

3.How much interest does James earn during the full investment period

State appropriate formulas and identify each variable