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13 x 9 = 117 (which is £1.17)
315 ÷ 5 = 63 Each ice cream cost 63 pence.Therefore, 9 ice creams cost £5 67 pence (UK).
It works out that each apple pie cost 16 and that each pumpkin pie cost 20
Multiply 9*16 to see how much it would measure in square meters. Then, multiply it by 1.25 which is the cost of each square meter.
Unit cost of the first item . . . . pNumber of these ordered . . . nCost of these . . . . . . . . . . . . . . . npUnit cost of the second item . . . (p + 9)Number of these ordered . . . . . 2nCost of these . . . . . . . . . . . . . . . . 2n(p + 9)Cost of the total order . . .np + 2n(p + 9) =np + 2np + 18n =n (p + 2p + 18) =n (3p + 18) = 3n (p + 6)