Question 1189304
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The cost of renting a car is $42/week plus $0.25/mile traveled during that week. 
An equation to represent the cost would be y=42+0.25x, where x is the number of miles traveled.

(a) What is your cost if you travel 53 miles?

(b) If your cost was $63.00, how many miles were you charged for traveling?

(c) Suppose you have a maximum of $100 to spend for the car rental.
What would be the maximum number of miles you could travel?
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<pre>
(a)  Substitute 53 instead of x into the formula and calculate.



(b)  To answer the question, solve an equation

         42 + 0.25x = 63.

     The solution is  x = {{{(63-42)/0.25}}} = 84 miles.



(c)  miles = {{{(100-42)/0.25}}} = 232.
</pre>

Solved.