Roberto bought a $420,000 house, paying 10% down, and financing the rest at 6.4% interest for 30 years. His monthly payments are $2364.41. How much will he really pay for his $420,000 house?

You decide to do some remodeling in the kitchen. Your parents agree to lend you the money, but you insist on paying them interest. The agreement is that they will lend you $8000.00 at a simple interest rate of 2% per year. Once the interest amounts to $480, you agree to pay them back the $8000 plus the $480 interest. How many months will it take you to pay back this loan if the interest amounts to $480.00

Parker has two options for buying a car. Option A is 2.1% APR financing over 72 months and option B is 5.1% APR over 72 months with $2600 cash back, which he would use as part of the down payment. The price of the car is $32,018 and Parker has saved $3200 for the down payment. Find the total amount Parker will spend on the car for each option if he plans to make monthly payments. Round your answer to the nearest cent if necessary

Warren opens a savings account, with the goal of saving $25,000 by making deposits each month for the next 10 years. If the account pays 5.5% interest, how much should Warren deposit each month?