25. Term of mortgage. There are two common choices for the term of a home mortgage: or 30 years. Suppose you need to borrow $90,000 at an APR of 6.75% to buy a home. a. What will your monthly payment be if you opt for a 15-year mortgage? b. What percentage of your first month's payment will be interest if you opt for a 15-year mortgage? (Round your answer to two decimal places as a percentage.) c. How much interest will you have paid by the end of the 15-year loan? d. What will your monthly payment be if you opt for a 30-year mortgage? e. What percentage of your first month's payment will be interest if you opt for a 30-year mortgage? (Round your answer to two decimal places as a percentage.) f. How much interest will you have paid by the end of the 30-year loan? Is it twice as much as for a 15-year mortgage