DVDS 4 U

SALE
Price label more than £8-take 15% off
Price label less than £8-take 10% off

a)ivy buys 5 dvds with a price label of £6.
work out how much she pays in the sale

b)kurt buys 2 dvds each with a price label of £4 and 7 dvds each with a price label of £17.
work out how much he pays in the sale