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Cost = (13.50 x number of children) + 23.Cost = (13.50 x 8) + 23.BIDMAS. Brackets first.Cost = 108 + 23 = £131.

Still now, the way I figure this out is still the same as when I was 6 years old and my teacher gave me this method. S is a very Sensitive letter and Vowels are very naughty. When they surround an S, the ...

Solve the simultaneous equations: 1. 2 + 5y = 3x2. x + y = 6step 1 - rearrange equation 2 to make x/y the subjecthow? example: subtract y from both sidesx = 6 - ystep 2 - substitu...