A truck waveling at an average rate of 45 miles per hour leaves a rest stop. Fifteen minutes later a car traveling at an average rate of 60 miles per
hour leaves the same rest stop traveling the same route. How long will it take for the car to catch up with the truck?
A. 1h 15m
B. 15m
C. 45m
D. 3h

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.

if you're trying to figure out how much each ounce cost it would be 0.20

cents each ounce