Maths

1. What is the solution to the equation 2x + 5 = 15?

2. What is the area of a triangle with a base of 10 cm and a height of 5 cm?

3. If you have a rectangle with a length of 8 cm and a width of 3 cm, what is its perimeter?

4. What is the value of the expression 3^2 + 4^2?

5. Which of the following is a prime number?

6. What is the slope of the line represented by the equation y = 2x + 3?

7. If a circle has a radius of 7 cm, what is its circumference? (Use π ≈ 3.14)

8. What is the probability of rolling a sum of 7 with two dice?

9. What is the mean of the following set of numbers: 3, 7, 5, 9, 6?

10. If the ratio of boys to girls in a class is 3:2 and there are 15 boys, how many girls are there?