Find the number of interest periods required to achieve the conditions set forth.

A = $5,000 P = $2,000 interest is 5% compounded annually

Convert the given interest rate to the APR.

8.4% compounded semiannually

A couple gets financing for 80% of the $150,000 purchase price of a house at the rate of 6% on the monthly unpaid balance. Find the total amount paid to the finance company if the loan is repaid in 25 years.