A sum of $120000 was borrowed for 5 years at a simple interest rate of 5.5% p.a. What amount is owed after 5 years?

Billy buys a computer for $2200. He pays it off monthly over 2 years at a flat interest rate of 12% p.a. How much per month will he pay?

Mary bought a car valued at $24,000. She paid a 10% deposit and $204 per week for 3 years. What was the flat interest rate of the loan?

Jim invests $20,000 for 4 years and receives $3,200 in interest. Betty invests $20,000 for 3 years and receives $2,700 in interest. What are their flat rates of interest?

What is the interest earned on an investment of $\$75,000$ at a flat rate of $1\mathrm{\%}$ every month after $8$ years?

Mr. Singh is starting his coffee shop in Albuquerque. For initial capital, he takes a loan of $\$15000$ from the bank. He is given the loan at $9\mathrm{\%}$ annual interest rate for a term of $5$ years.

a) Find the interest charged to Mr. Singh after $18$ months.
b) Find the interest charged to Mr. Singh over the complete term of the loan.

Calculate the amount of interest on a loan of $32,000 at 6.25% p.a. for a period of 15 months

A sum of $320,000 was borrowed for 7 years at a flat rate of 4.5% p.a. What was the amount owed after 7 years?

Nancy buys a fish tank for $1500. She pays it off monthly for 2 years at 8% p.a. How much per month does she pay?