What non-zero rational number must be placed in the square so that the simplified product of these two binomials is a binomial: $(7t-10)(5t+\Box )$? Express your answer as a mixed number.

i agree because i see the other persons thinking is clear

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 da answer is

d.square root of 3