Dasha is 10 years old, Masha is 17 years old and
Sasha is 23 years old.
Masha and Sasha share £16 in the ratio of
their ages.
Sasha gives 20% of her share to Dasha.

👉🏼How much money does Dasha receive?

👈🏼Simplify

👆🏼A is inversely proportional to the
square of B. When A = 10, B = 4.
Find A when B = 10

👇🏼What is the gradient of a line that is perpendicular to the line y = 3x-1

🖐🏼Make m the subject of