The school student council sponsor a switch day where students were able to switch classes every 20 minutes the students are in school for seven hours if a student switches as often as possible how many classrooms in all did that student visit

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.

i think it’s c i believe