Pedro works as a newspaper deliverer. he receives a base pay plus an additional amount per newspaper delivered. last week, pedro delivered 5 newspapers and earned $37.50. this week, he delivered 20 newspapers and earned $75.

Use the x-intercept method to find all real solutions of the equation. x^3-10x^2+27x-18=0

Including 6% sales tax, an inn charges $135.68 per night. find the inns nightly cost

(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.)