What is the solution for 5x-9 is less than or equal to 21

What point is the projection of q on a) r b) s c) t

(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.)

8litres of paint can cover 129.6 m². how much paint is required to paint an area of 243m²?