The area of indrani's rectangle depends upon
the width she chooses.
write an expression that describes the area of
indrani's rectangle if the width is w.
enter the correct answer.

right

step-by-step explanation:

i believe it's a.

i'm not sure on this one, most likely correct.

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.