11. [-10.76 Points] DETAILS TAMUBUSMATH 6.2.012. 0/6 Submissions Used MY NOTES ASK YOUR TEACHER Five years ago, you acquired a 30-year loan of $130,850, charging 6.7% annual interest, compounded monthly, and requiring monthly payments. At this time, interest rates on 15-year loans have dropped to 2.2% APR, compounded monthly, and you wish to refinance what you still owe with a new loan at this new rate. (a) How much (in dollars) will you be refinancing? Round your answer to the nearest dollar. $ (b) How much (in dollars) will your new monthly payment be after refinancing? Round your answer to the nearest cent. $ 12. [-10.76 Points] DETAILS TAMUBUSMATH 6.2.014. 0/6 Submissions Used MY NOTES ASK YOUR TEACHER At age 26, you start an IRA to save for retirement. You deposit $225 at the end of each month. If you can count on an APR of 5%, compounded monthly, how much total interest (in dollars) will you have earned when you retire at age 68? (Round your answer to the nearest dollar.) 13. [-10.88 Points] DETAILS TAMUBUSMATH 6.2.015. 0/6 Submissions Used MY NOTES ASK YOUR TEACHER You purchase a home for $436,000 by making a down payment of 15% and financing the remaining amount with a 15-year mortgage. Your mortgage has an annual percentage rate of 2.12%, compounded monthly, and requires monthly payments. How much total interest (in dollars) will you pay on this loan after 15 years? (Round your answer to the nearest dollar.)