Solve the following proportions X/5=8/120

Given the following statements, which is the best

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

When keisha installed a fence along the 200 foot perimeter of her rectangular back yard, she left an opening for a gate.in the diagram below, she used x to represent the length in feet of the gate? what is the value? a. 10 b. 20 c. 25 d. 30