(a) The cost (P), in Ghana cedis, of producing n items is given by the formula,
P=¾n+1800 . Find the:
cost of producing 2,000 items;
number of items that will be produced with GHC 2,400.00;
cost when no items are produced.

(b) A passenger travelling by air is allowed a maximum of 20 kg luggage.
A man has four bags weighing 3.5 kg, 15 kg, 2 kg and 1.5 kg.
Find the excess weight of his luggage
Express the excess weight as a percentage of the maximum weight allowed.