A local gas station is offering a deal to their customers. If they purchase an $8.00 car wash, the cost per gallon gas is $2.60. Write and solve a linear equation to find how many gallons you can afford if you have $40.

An unknown number x is at most 10. which graph best represents all the values of x? number line graph with closed circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the left. number line graph with closed circle on 10 and shading to the left.