If 3/7m= 7/3 n, then what is the value of m/n?

Step-by-step explanation:

WE can determine the value of m/n by multiplication. Assuming the equation is 3/(7m)=7/(3n)

Times both sides by the denominators 7m and 3n:

divide by 49 and n:

graph b

step-by-step explanation:

one solution- graph a (clear intercepting point.)

no solution- graph b (they're parallel, there will never be a point of interception.)

infinite solutions- graph c (all points intercept.)

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.