(a)[2]
For $T = 5P + 3Q$, work out $T$ when $P = 6$ and $Q = 8$.
(b)[2]
Simplify $3a - 7b + 2a + 4b$.
(c)[1]
Multiply out $5(2x - 3y)$.
(d)[2]
Solve $5x - 1 = 3x + 19$.
(e)[2]
Make $t$ the subject of the formula $p = 5t - 3$.
(f)[6]
Write down a pair of simultaneous equations to represent this information, then solve them to find the values of $x$ and $y$. Show all working.