90< -30p+15 how do you solve this

Part a : solve -vp + 40 < 65 for v part b : solve 7w - 3r = 15 for r show your work .

1. how do you convert the repeating, nonterminating decimal 0. to a fraction? explain the process as you solve the problem.

(b) suppose that consolidated power decides to use a level of significance of α = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is x⎯⎯ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume σ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)