SOLUTION: The Majik car rental company charges a flat fee of $21 per day and a mileage charge of $0.18 per mile. John rented an SUV for 6 days and he covered m miles during this period. Ex

Question 55942: The Majik car rental company charges a flat fee of $21 per day and a mileage charge of $0.18 per mile. John rented an SUV for 6 days and he covered m miles during this period. Express the total charge as a function of m.
I started with, f(m)=0.18*m+21*6, I am not sure where to go after that. Unless I can set the problem equal to 0 and solve for m.
Any help would be greatly appreciated!
Answer by Hook(36) (Show Source): You can put this solution on YOUR website!
You're really close. The problem just asked you to write a function...and not solve for anything.
Just simplify and you're there.
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