Simplify \(\left(1\frac{2}{3}\right)^2 - \left(\frac{2}{3}\right)^2\)
Find the value of x which satisfies the equation
5(x-7)=7-2x
A pyramid of volume 120cm3 has a rectangular base which measures 5cm by 6cm. Calculate the height of the pyramid
PQRS is a cyclic quadrilateral. If ∠QPS = 75°, what is the size of ∠QRS?
