The perimeter of a square is to be between 14 and 72 feet, inclusively. find all possible values for the length of its sides. (< = : less than or equal to) a) 3.5 < = x < = 18 b) 10 < = x < = 68 c) 7 < x < 36 d) 7 < = x and x < = 36

just sum

10 + 10 = 20

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.