Answer:
£450
Step-by-step explanation:
using the formula C = 12×m.p + d
£8000 = 12m.p + £2600
collecting like terms, £8000 - £2600 = 12m.p
£5400 = 12m.p
dividing by coefficient of m.p,
£5400/12 = 12m.p/12
when you divide,
£450 = m.p
hence, m.p = £450