16. John buys 13 pens, four A4 booklets and 3 packs of coloured pencils. Pens cost £0.99 each, A4 booklets cost £1.99 each and packs of coloured pencils cost £1.49 each. If John uses his loyalty card, which gives him a 7.5% discount, and a £2.50 off voucher, how much will John need to pay? (voucher is applied after the 7.5% discount)