Two walls are 26ft long by 9 9ft wide the other wall is 18ft long by 9ft wide. each gallon of paint covers about 250sq ft how many gallon of paint should amelia buy to paint the walls?

c.35

step-by-step explanation:

8+13=21

21+8=29

29+6=35

the height of the surface increases from the center out to the sides of the road.

step-by-step explanation:

as we move out we move away from the x-axis.

and as mentioned in the problem statement that height of a road increases when we move away from the center x.

hence proved that 3rd option

the height of the surface increases from the center out to the sides of the road.

is the correct option.