(a-2)^2=64
Please help solve?

In which figure is de bc ? a. figure 1 b. figure 2 c. figure 3 d. figure 4

One side of a rectangle is 7 feet shorter than seven times the other side. find the length of the shorter side if we also know that the perimeter of the rectangle is 306 feet.

Which of the following correctly justifies statement four of the two column proof? a. corresponding angles theorem b. transitive property of equality c. vertical angle theorem d. substitution property of equality