The dimensions of rectangular prism x are twice the dimensions of rectangular prism y. the surface area of prism x is 100 square inches. what is the surface area of prism y? the dimensions of prism z are three times the dimensions of rectangular prism y. what is the surface area of prism z?
and it would be awesome to tell me how you got your answer so i know what to do.
thx!

(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.)