What do you multiply by to:
a) increase by 30%
c) decrease by 7%
b) decrease by 84%
d) increase by 1.5%

2) A return train ticket between Liverpool and London costs £117.50. The price decreases by 4%. Work out the new price of the train ticket.

3) Paul buys a TV priced at £1650 plus 20% VAT. He pays £500 deposit and the balance in 10 equal monthly payments. Calculate each monthly payment.

4) When a tennis ball is dropped, it bounces and then rises. The ball rises to 80% of the height from which it is dropped. The ball is dropped from a height of 4 metres. The ball carries on bouncing, each time rising to 80% of the last rise. For how many bounces does the ball rise to a height greater than 10cm?​