SOLUTION: Imagine you are at a gas station filling your tank with gas. The function C(g) represents the cost C of filling up the gas tank with g gallons. Given the equation C(g)=3.50(g) ple

Question 322392: Imagine you are at a gas station filling your tank with gas. The function C(g) represents the cost C of filling up the gas tank with g gallons. Given the equation C(g)=3.50(g) please help don't understand.......
find c(7)
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
In the function , the C stands for the cost of the gas you put into your gas tank. The g stands for the number of gallons of gas you buy, and the 3.50 is the cost, per gallon, of the gas.
If you want to find out how much 7 gallons of gas wiil cost, you replace the g in the function with 7 and solve for C, thus:

You will interpret this to mean that the cost (C) of 7 gallons of gas (C(7)) is $24.50
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