Please help me with this question:)

Solve the following inequalities and show the solution on a number line. 3/4 (2x-7) ≤ 5

Factor and solve to find roots x squared -x - 90 =0

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.