In a family, the sum of the ages of four kids is 30 years less than the sum of the ages of their parents. in how many years will these sums be equal?

(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.)

Calculate the annual effective interest rate of a 12 % nominal annual interest rate compound monthly

Need answer asap (see image) (20 points)