Please show the complete solution steps,including formulas.

Especially the third question, please show it in detail.

Bonds of Zello Corporation with a par value of $1,000 sell for $960, mature in 5 years, and have a 7% annual coupon rate paid semiannually. a. Calculate the: i. Current yield. ii. Yield to maturity (to the nearest whole percent, i.e., 3%,4%,5%, etc.). iii. Realized compound yield for an investor with a 3-year holding period and a reinvestment rate of 6% over the period. At the end of 3 years the 7% coupon bonds with 2 years remaining will sell to yield 7%