(a(i))[2]
Calculate the volume of the cuboid.
(a(ii))[2]
Calculate the radius of the cylinder.
(a(iii))[5]
Calculate the difference between the surface areas of the two sweets.
(b(i))[2]
Write down the remaining two inequalities.
(b(ii))[4]
On the grid, shade the unwanted regions to show the area that satisfies all three inequalities.
(b(iii))[3]
Find the lowest cost of a bag of sweets. Write down the values of $x$ and $y$ that produce this cost.