Carmella purchased a refrigerator under a conditional sale contract that required 25 monthly payments of $79.26 with the first payment due on the purchase date. The interest rate on the outstanding balance was 18% compounded monthly. a. What was the purchase price of the refrigerator? (Do not round intermediate calculations and round your final answer to 2 decimal places.) Purchase price $ b. How much interest did Carmella pay during the entire contract? (Do not round intermediate calculations and round your final answer to 2 decimal places.) Interest paid $