A full roll of cloth contains d metres. When 18 m have been sold, the value of the
remaining cloth is N25 600.
a How many metres of cloth are worth
N25 600?
b express the selling price of 1 metre of cloth in terms of d
c if the selling price is N800 per metre, find the length of a full roll of cloth​

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1.17+3.99a. you combine the terms with a to create 3.99 and the 1.17 stays because it has no like terms or a variable