(a)[3]
$r = \frac{4p + 3t}{2}$. Determine $p$ when $r = 10$ and $t = -2$.
(b)[4]
The diagram represents a quadrilateral. Set up an equation in $w$ and solve it to determine the size of the largest angle in the quadrilateral.
(c)[3]
Simplify $\frac{2k^2 - 5k - 3}{k^2 - 9}$ fully.
(d)[6]
Solve $\frac{2}{x+3} + \frac{5}{x-2} = 1$. Show all your working and give your answers correct to $2$ decimal places.