In the following 7×5 grid, find the number of roads that connect a and b and
a) pass through c.
b) do not pass through c.
need both asap!

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.