What is the value of b in this equation (y^-9)^b=y^45

Graph the equationy= x+3[tex]y = x + 3[/tex]

What is the equation of the line that is parallel to the line with the equation y= -3/4x +1 and passes through the point (12,-12)

(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.)