(a)[2]
Solve $ \dfrac{p - 1}{7 - p} = 5$.
(b)[2]
Simplify the expression $\left\sqrt{\dfrac{9ab^6}{a^3 b^2}\right}$.
(c)[2]
Simplify the fraction $\dfrac{q^2 - q^3}{3 - 3q}$.
(d(i))[2]
Factorise the quadratic $4t^2 + 35t - 9$.
(d(ii))[1]
Hence, solve $4t^2 + 35t - 9 = 0$.