Help. No links. Ty :3

On the april 3 billing date, michaelle chappell had a balance due of $ 1495.39 on her credit card. from april 3 through may 2, michaelle charged an additional $ 305.34 and made a payment of $ 800.a) find the finance charge on may 3, using the previous balance method. assume that the interest rate is 1.8 % per month.b) find the new balance on may 3.

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?

8.74 rounded to the nearest whole number