Which equation shows the result of substituting y from the first equation into the second equation for the given system? y=x+5; y-2x=2 a.(5-x)-2x=2 b.(x+5)-2x=2 c.(x+5+2x=2 d.(x+5)-2x=0

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

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

Two sides of a right triangle measure 2 units and 4 units. what is the area of the square that shares a side with the third side of the triangle?