(a)[2]
Simplify the expression $5g - 3h - 7g + 6h$.
(b)[2]
Find the value of $j$ given that $k = -5$ and $m = 6$.
(c)[2]
Factorise completely $14x^3 + 49x$.
(d)[3]
Solve the equation $8(3t - 9) = 108$.
(e(i))[1]
Find the value of $w$ here.
(e(ii))[1]
Find the value of $x$ in $4x^2 = 256$.
(f)[4]
Use this information to form an equation and solve it to determine the value of $x$.