Please help. I'm trying to figure out the answer for 4a, b, c, and d. I'm stuck.

c) What is the excel 13.18% 10 DE28: 128 4) A coupon bond pays this amount every 6 months; S 30.00 for the number of payments/year; 2 The bond also pays at maturity the par (face) value; $ 1,000.00 Number of years until maturity 15 The required return of holders of this bond is; 8.00% a) What is the PV of the CFs, or what would be the fair price to purchase this bond? b) If the required return of holders of this bond is; 6.00% What is the PV of the CFs, or what would be the fair price to purchase this bond? c) If the required return of holders of this bond is; 4.00% What is the PV of the CFs, or what would be the fair price to to purchase this bond? d) If the previous bond sells for; $ (976.00) What must be the yield to maturity for this bond (aka IRR) ? (to nearest b.p.) 5) Using an online tool like Calculator Soup https://www.calculatorsoup.com/calculators/financial/future-value-annuity-calculator.php Calculate the FV of an annuity that grows. The person will save $200 at the end of the first month. They will increase their will be $202 00