Find the interest 1280 at 12% for 9 months. Round to the nearest cent ( use appropriate symbols for monetary answer)

John invested a sum of money, which earned $750 simple interest at the rate of 6% over 2 years. The amount invested was (use appropriate symbols for monetary answer)

Kimberly purchases a $10,200 car. She makes a 1500 down payment and agrees to pay 36 monthly payments of 270.62. The dealer claims a 7% annual rate. Find the APR value to the nearest half percent to see if the dealer is being truthful in lending.

Jackie bought appliances costing $3795 at a store charging 6% add-on interest. She made a $1000 down payment and agreed to monthly over two years. Answer the Following

Find the total amount to be financed

Find the total interest to be paid

Find the total amount to be paid

Find the monthly payment

Suppose that you have 10,000 to invest. Which is investment yields the greater return over 7 years 6.6% compounded monthly or 6.7% compounded quarterly?