Ivan buys candy that costs $7 per pound. he will buy at most 9 pounds of candy. what are the possible amounts he will spend on candy?
use c for the amount (in dollars) ivan will spend on candy.
write your answer as an inequality solved for c.

Kylie explained that (-4x+9)^2 will result in a difference of squares because (-4x+9)^2 (-4x+9)^2 =(-4x)^2+(9)^2=16x^2+81

Find the maximum value of p= 4x + 5y subject to the following constraints :

(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.)