In the diagram, O is the centre of the circle ∠PQR = 75o, ∠OPS = yo and \(\bar{OR}\) is parallel to \(\bar{PS}\). Find y

The sides of a right angle triangle in ascending order of magnitude are 8cm, (x-2)cm and x cm. Find x

Express \(\frac{7}{19}\) as a percentage, correct to one decimal place

Express 398753 correct to three significant figures