Homework: 5.3 Annuities, Future Value, and Sinking Funds Score: 0 of 1 pt 5 of 6 (4 complete) 5.3.49-BE Ingrid wants to buy a $21,000 car in 6 years. How much money must she deposit at the end of each quarter in an account paying 5.6% compounded quarterly so that she will have enough to pay for her car How much money must she deposit at the end of each quarter? $ (Do not round until the final answer. Then round to the nearest cent as needed.) Homework: 5.3 Annuities, Future Value, and Sinking Funds Score: 0 of 1 pt 6 of 6 (4 complete) 5.3.53-BE To save for retirement, Karla Harby put $600 each month into an ordinary annuity for 15 years. Interest was compounded monthly. At the end of the 15 years, the annuity was worth $186,776. What annual interest rate did she receive? The interest rate she received was approximately (Round to two decimal places as needed.) %