Directions:Use the product rule to simplify the following monomials. 7.) (8x⁴y²)(-3x⁴y⁹)
8.) 2y • -5y² • 3y³
9.) (-2xy)(xy)(3x²y³)

-ANYONE PLEASE HELP ME BECAUSE I HAVE TO PASS THIS LATER AT 10PM AND IT'S ALREADY 9:17PM PLEASE HELP:(​

Find the solution(s) to x^2-14+49=0

(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.)

Joe bought 4.25 pounds of pears for $7.18. if the equation 4.25x = 7.18models the situation, what does the variable stand for?