The Masters family financed a computer that cost $1,200. If the interest rate is 19%, how much will the family owe for the computer after one month if no payments are made?
Samantha received a loan from the bank for $4,500. She plans on paying off the loan in 4 years. At the end of 4 years, Samantha will have paid $900 in interest. What is the simple interest rate on the bank loan?