PLS HELP. Jenna made one container of orange punch and served it to her friends at a picnic. The container served 10 people. About how big was the container?

15 people

Step-by-step explanation:

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.