the two solids below are similar and the ratio between the lenghs of their edges is 3:5 what is the ratio of their surfaces

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

When solving this problem: 3025/5.5 = a/90.75 you get 49912.5 which would be the length of one of the sides of a square when the area is only 90.75 inches. is that answer correct, why, and how is it possible?