These two screenshots both have the information you can use for the answer. The first screenshot is the chart and the second is the question.

Step-by-step explanation:

Let h be the number of hours spent

Let d be the distance travelled

given d = 1.5 when h = 1, and d = 3 when h = 2,

d = 1.5h

given h = 7,

answer: the is put the 450

step-by-step explanation:

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.