(a)[2]
Expand the brackets, then simplify $5(2x + 3) - 2(x + 4)$.
(b(i))[1]
Find an expression for the perimeter of the triangle in terms of $x$. Leave your answer in its simplest form.
(b(ii))[1]
Find the length of one side of the square, in terms of $a$, and give your answer in simplest form.
(c)[3]
Find an expression for the rectangle’s perimeter in terms of $y$. Give your answer in simplest form.
(d)[5]
Form an equation in terms of $m$, then solve it to determine the cost of one mint.