Take some points m fsss

Find the value of x that will make l ll m

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

What is the slope of the line that contains the points (-2,1) and (0,-3)