Find the price for a 7.5% coupon bond under the following conditions:

1a. 30 years to maturity, required return is 9%

1b. 30 years to maturity, required return is 7.5%

1c. 30 years to maturity, required return is 6%

1d. 10 years to maturity, required return is 9%

1e. 10 years to maturity, required return is 7.5%

1f. 10 years to maturity, required return is 6%

1g. 2 years to maturity, required return is 9%

1h. 2 years to maturity, required return is 7.5%