PQRS is a trapezium in which |PS| = 9cm, |QR| = 15cm, <PQR=90° and <QRS=30° Calculate the perimeter and area of the trapezium​

If you are dealt 4 cards from a shuffled deck of 52? cards, find the probability that all 4 cards are diamondsdiamonds.

Aword processing program requires a 7- digit registration code made up of the digits 1,2,4,5,6,7 and 9 each number has to be used and no number can be used mor than once how many codes are possible

Which number line correctly shows 0.8 + 0.3?