PLEASE HELP ME Solve each given equation and show your work. Tell whether it has one solution, an infinite number of solutions, or no solutions. (c) 3x + 4x - 8 = 24 + 6x
(d) 15 – 3x = -2x + 10 + 5 - x
(e) 6x + 14 + 2 = 3x – 20 + 3x +10

What is the measure of angle afe? 79 81 91 99

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.