Consider Gavin, a new freshman who has just received a Stafford student loan and started college.  He plans to obtain the maximum loan from Stafford at the beginning of each year.  Although Gavin does not have to make any payments while he is in school, the 7 percent interest owned (compounded monthly) accrues and is added to the balance of the loan.

After graduation, Gavin gets a six-month grace period.  This means that monthly payments are still not required, but interest is still accruing.  After the grace period, the standard repayment plan is to amortize the debt using monthly payments for 10 years.

a) What will be the loan balance when Gavin graduates after his fourth year of college?

b) Using the standard repayment plan and a 7 percent annual interest rate, compute the monthly payments Gavin owes after the grace period.

c)What is the loan balance six months after graduation?