PLEASE USE EXCEL TO SOLVE THIS

Vicky wants to customize her car so that she can enter some races. She

negotiates a loan at $3\mathrm{.}8\%,$ compounded weekly, with regular payments

of $$25$ at the end of each week. She wants to repay the loan in $1$ year.

a$)$ What is the most she can borrow?

b$)$ How much will she pay in interest?