(a) What is the monthly payment required by the loan? (Round your answer to the nearest cent.) How much extra did she pay per month? (Round your answer to the nearest cent.) \$ (b) How many $501 payments will she make to pay off the loan? (Round your answer up to the next whole number.) X payments (c) How much will she save by paying $501 per month rather than the required payment? (Round your answer to the nearest cent.) $