👉🏼The probability of Spiky Mikey scoring a penalty is 0.7. He takes 30 penalty shots. How many goals should he score?

👈🏼Factorise x²+4x-12

👆🏼Juicy Lucy invests £800 in the bank for five years at x% compound interest.

At the end of the five years, she has £887.60. She says that x is between 1% and 2%. Is she correct?

👇🏼 f(x) = 3x+2

g(x) = x²

Find g(f(5))

🖐🏼a and b are positive numbers. a is inversely proportional to b. When a is 7, b is 28. Find the value of a when a = b.