(a)[2]
Simplify $7e+4e-5f-f$.
(b)[2]
Find the value of $8g-9h$ for $g=5$ and $h=-3$.
(c)[2]
Solve $4x-7=29$.
(d)[1]
Simplify $k^4\div k^{11}$.
(e(i))[1]
Complete the equation representing this cost in cents: $3p+5w=$
(e(ii))[1]
Write down an equation that represents this cost in cents.
(e(iii))[3]
Solve the equations to determine the values of $p$ and $w$.