(a)[2]
Express $\frac{4}{x-2}-\frac{5}{x+1}$ as a single fraction in simplest form.
(b)[3]
Solve the equation $2x(x+1)=3(4-x)$.
(c(i))[1]
Form a pair of simultaneous equations that represents the information.
(c(ii))[3]
Solve the simultaneous equations to determine the cost of a pen and the cost of a notebook.