Arestaurant bill includes 20% vat and a 10% service charge. the total bill is £111.21
work out the cost, excluding vat and service.

£85.55.

Step-by-step explanation:

The total additions  is (0.2 + 0.1) = 0.3x where  x is the cost  excluding VAT and service, then:

 x + 0.3x = 111.21

x = 111.21 / 1.3

= £85.55.

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3