1. What is the future value of $100 invested for 2 years at an annual interest rate of 5% compounded annually?

2. If a shirt costs $40 and is on sale for 25% off, what is the sale price?

3. What is the ratio of 2:3 simplified as a percentage?

4. A company's revenue was $200,000 last year and $250,000 this year. What was the percentage increase?

5. If the original price of an item is $120 and it is marked up by 20%, what is the new price?

6. What is the gross profit margin if the cost of goods sold is $40,000 and the sales revenue is $100,000?

7. How many units must a company sell to break even if the fixed costs are $10,000, the variable cost per unit is $5, and the selling price per unit is $15?

8. A loan of $1,000 is taken out with a simple interest rate of 10% per annum for 3 years. What is the total interest paid?

9. What is the net present value (NPV) of an investment with an initial cost of $5,000, a discount rate of 10%, and a cash flow of $2,000 annually for 3 years?