Finance: Current bond price, YTM, coupon rate, real rate of interest for T-bills.

Staind, Inc. has 7.5 percent coupons and bonds on the market that have 10 years left to maturity. The bonds make annual payments. If the YTM on these bonds is 8.75 percent, what is the current bond price?

Ackerman Co. has 9 percent coupon bonds on the market with nine years left to maturity. The bonds make annual payments. If the bond currently sells for $934, what is the YTM?

Ashes Divide Corporation has bonds on the market with 14.5 years to maturity, a YTM of 6.8 percent, and a current price of $924. The bonds make semiannual payments. What must the coupon rate be on these bonds?

If treasury bills are currently paying 7 percent and inflation rate is 3.8 percent, what is the approximate real rate of interest? The exact real rate?