a$.$ Use the last column to determine how long it will take for Oliver to pay of each balance if he pays the $($minimum$)$ monthly payment. Show relevant calculations below.

b$.$ Suppose Oliver consolidates his loan and credit card balance by using a line of credit to pay off each debt. The line of credit has an interest rate of $7\mathrm{.}5\%,$ compounded monthly. If Oliver makes payments of $$380,$ how long will it take to be debt free?

c$.$ Hov much intarest would he save by consolidating his debt? YOU MUST USE A FINANCIAL CALCULATOR.