Mr. Piper's plumbing needed repairs. The plumber charged
$98 for parts plus $45 per hour
for labor. If the bill totaled $458,
how many hours of labor were
required?

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?

Can someone me i’m confused. will give brainliest and a whole bunch of points

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?