After hiking to the top of a mountain, raul starts to descend at the rate of 350 feet per hour. what real number represents his vertical change after 1 1/2 hours?

y=350x

x=1.5

y=525

he traveled 525 feet in 1.5 hours

Hope this helps!

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.

answer: 72: 111

step-by-step explanation: