Assume you take out a car loan of $7,100 that calls for 72 monthly payments of $150 each. a. What is the APR of the loan? (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places. Use a financial calculator or Excel.) Annual percentage rate b. What is the effective annual interest rate on the loan? (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.) Effective annual rate