Suppose an investment offers to quintuple your money in 30 months (don't believe it). What rate of return per quarter are you being offered? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) One of your customers is delinquent on his accounts payable balance. You've mutually agreed to a repayment schedule of $500 per month. You will charge 1.4 percent per month interest on the overdue balance. If the current balance is $13,000, how long will it take for the account to be paid off? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.) Find the EAR in each of the following cases: (Use 365 days a year. Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) Find the APR, or stated rate, in each of the following cases: (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.)