Question 629661
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Hi,
Cost = 150 + 45(h - 1) 
h is the number of hours for which the car is hired. 
How much will it cost Tom to hire the car for 8 hours. 
Cost = 150 + 45·(8-1)    
Cost = 150 + 45·7    || Need to first determine  45(8-1) and then add to 150