Point P is plotted on the coordinate grid. If point S is 12 units to the left of point P, what are the coordinates of point S?

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.