A20 foot ladder is leaning against the side of a building. the bottom of the ladder is 4 feet from the wall. how many feet above the ground does the ladder touch the wall?

4 candies

step-by-step explanation:

7 x 28 = 196

200 - 196 = 4 candies remaining.

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.