You have just borrowed $120,000 to buy a condo. You will repay the loan in equal monthly payments of $1,580.15 over the next 20 years. a-1. What monthly interest rate are you paying on the loan? (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.) Monthly interest rate t a-2. What is the APR? (Do not round intermediate calculations. Enter your answer as a whole percent.) APR b. What is the effective annual rate on that loan? (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.)