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Mathematics

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A rental car agency charges $26.00 per day and 25 cents per mile.
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(b) Use a formula to express the cost of renting a car as a function of the number of days you keep it and the number of miles you drive. (Let d be the number of days you rent the car, m the number of miles you drive the car, and C the cost in dollars of renting the car.)
C(d, m) =
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(a) Total rental charge= rent due to rent duration(in days)+rent due to miles covered
=$26 x 4+$(1/4) x 300=$179
where charges per day is $26.00 and charges per mile is 25 cent or $1/4 .
(b) Formula which can be used to express the cost of renting a car is calculated as follows:
As the rate is $26 per day and 25 cents or $(1/4) per mile, the total cost of renting a car for d number of days and travelling m number of miles is calculated as:
C(d, m )=$26.00 x d+ $(1/4)x m
=26 d+0.25 m
=1/4(104 d+m )
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