Which equation has no solution?
|-x-3) = 5
12x - 1) = 0
15 - 3x = -8
|-x + 91 = 0

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25

Answer asap! due in 30 minutes! ! 8th grade math