consider the equation 5*10^x/4=32 Solve the equation for z. Express the solution as a logarithm in base-10. Approximate the value of z. Round your answer to the nearest thousandth.

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.