Please show through excel

8.7 Time-Value-of-Money Problems II Compute the PV of the cash flows shown in Figure 8.33 if the interest rate is 4% APR compounded monthly. Figure 8.33 Cash flow timelines. Part a $1500 $1000 $500 $500 $500 $500 $500 $500 $500 0 1 2 3 4 5 6 7 8 years - - - - Part b $1500 $1000 $500 $500 $500 $500 $500 $500 $500 0 1 2 3 4 5 6 7 8 months Part c $1500 $1000 $500 $500 $500 0 1 2 3 4 5 6 7 8 years