All work must be shown in detail. Explanations and responses should be in complete sentences. This project will be graded based on appearance, completeness, and correctness.

Little info (just in case u need it) : I drive a 2000 Suzuki grand vitara Â… fuel capacity: 20 mpg

for the average yearly mileage of my vehicle to the nearest thousand i got 7000 miles (u can tell me if it is wrong!)
and for the average price per gallon that i pay for gas it got $2.87/gallon…

now my question is:Write the function C(x) which is the annual cost of fuel for your vehicle as a function of the miles per gallon x. (do not use a specific number for miles per gallon for x here) show work.

how can i do this …please help me!

(after that i have to take the derivate of the C(x)(but that i know how to do …im just telling you so u have a better idea of what i have to do)
)