the cost of colour film for 36 photographs is usually $3.60.additionaly the cost of processing and printing the 36 photographs is usually $12.60.(a) show that the total cost of each photograph is usually 45 cents.
b.a shop keeps the price of the film at$3.60,and offers a reduction of 20% off the cost of processing and printing.calculate the total cost of each photographs at this shop.
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