Zoey was out at a restaurant for dinner when the bill came. Her dinner came to $31. After adding in a tip, before tax, she paid $38.44. Find the percent tip.

42.4

step-by-step explanation:

convert to decimal

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.

2/3

step-by-step explanation:

step-by-step explanation:

is their an equation anywhere i can take a   look at it and see if i am right.