Find the exact solution of each equation for 0 <= q <= 2pi .
4cos^2 q = 3

Cameron made 1 loaf of bread. his family ate 4/6 of the loaf of bread. how much of the loaf of bread remains? /

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?

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.