Make r the subject of the formula x = (3r - 4)/5

Draw y=x^2+5

A class of pupils were asked about how they travelled to school on a particular day. 1/6 of the pupils were driven to school in a car. 2/5 of the pupils took the bus. The rest of the pupils walked to school. Calculate the fraction of pupils who walk

What is a stratified sample?

Find the values of a, b and c in the equation: (5x + 3)(ax + b) = 10x^2 + 11x + c.