👉🏼Make y the subject of

👈🏼Expand and simplify: (2x+11)² – (x-7)²

🖐🏼Solve the following simultaneous equations:

2x + 2y = 14

5x – 3y = 19

👆🏼What is the median of the following dataset: 3, 8, 4, 8, 3, 5, 9 ?

👇🏼A company increases the price of their product by 20%. As a result they sell 18% fewer items than they did before. Does this result in them making more or less money than before? By what percentage?