Aschool is repainting some of its classrooms. each classroom is repainted with 5.5 gallons of paint. write and solve an equation to determine the gallons of paint the school must purchase if they repaint 18 classrooms.

idk how to write the equation

The measure of angle 0 is 600 degrees

One cell phone plan charges $20 per month plus $0.15 per minute used. a second cell phone plan charges $35 per month plus $0.10 per minute used. write and solve an equation to find the number of minutes you must talk to have the same cost for both calling plans.

What graph represents an even function