Aisha wants to paint the four walls of her living room.
Each wall is 2.7 m high and 4.2 m long.
One wall has a door of 2 m by 0.8 m.
Tins of paint cost £12 per 1.4 litre tin.
Each litre of paint can cover 15 m2 of wall.
There is an offer of: Buy 2 tins get the 3rd at half price.
How much will Aisha pay to paint her living room?