question 13
(a) what percentage is £35.25 of £47 ?

35.25
------  X 100     = 75%
47

(b)
Sandy got new phone for£44 plus 17.5% vat

Glen got a similat phone in a different shop
Glen paid£50.31 plus vat 17.5%

which phone was more expensive and by how much?

sandy = 17.5 ÷ 100 = 0.174 x 44      = 7.70 + 44      = £51.70
glen    = 17.5 ÷ 100 = 0.174 x 50.31 = 8.75 +50.31  =£59.06

£59.06
£51.70
--------
£07.36 Glens phone