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From the question, we learn that Adam has take out a loan of £720. He will be paying back the loan in 12 monthly installments of the same amount each time. We are also told he must pay the loan back with ...

sin(x) = 0.5 x = arcsin(0.5) x = 30 degrees , 150 (180-30) degrees

y=mx+c m = gradient of the line c = the y intercept x and y are variables

Multiples of 15: 15, 30, 45, 60, 75, 90, 105, 120 Mulitples of 40: 40, 80, 120 This means that there are 120 people at the conference, and that he sold 3 boxes of pencils (40x3=120) and 8 boxes of pens (1...

We rearrange equation (1) to obtain an expression in terms of x. We then substitute this expression in place of x in equation (2), rearranging to find the numerical value of y. This value of y can then be...