LAY OUT EACH PROBLEM SOLUTION EXACTLY AS SHOWN BELOW. Sample Problem: At the end of every 6-month period for 15 years, Sally deposits $1,200 into a savings account paying 5% compounded semiannually. Here's how to show your work. Data: t = 15 years m=2 = 5% n= 30 i = 2.5% R=$1,200 Type 1-A (a) What is Sally's accumulated balance after 15 years? FV = $52,683 (b) How much interest does she earn? interest - $16,683 8. Fred is obligated to pay Frank $1,250 a month for the next 30 months -- payments occurring at the end of each month - for a total of $37,500. Frank offers Fred the option of paying off the loan today as a lump sum. Data: (a) Compute the present value of the 30 loan payments of $1,250 at interest rate r = 12.5%. (b) Compute the present value of the 30 loan payments of $1,250 at interest rate r = 9.5%