PLEASE HELP ME, YOU’LL SAVE ME !!

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

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

X+y=-4 x-y=2 use elimination with adding and subtraction