What would this question look like after we change the mixed numbers to improper & use KCF to rewrite the question? 2 2/5 divided by 1 3/4 =
A) 12/5 x 4/7
B)12/5x7/4
C)2/5x4/3
D)2x3/4
Plsss help

(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.)