How to find amplitude and period from equation?

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

What numbers are included in the set of integers? what numbers are not included?

Which account has the highest effective annual interest rate? not necessary but show how you got your answer.a. account 1: interest is compounded quarterly at an annual rate of 4.20%.b. account 2: interest is compounded monthly at an annual rate of 4.15%.c. account 3: interest is compounded semiannually at an annual rate of 4.10%d. account 4: interest is compounded annually at a rate of 4.25%.