Write a function rule for the relationship between the amount of plant food remaining, f(x), and the number of days that have passed, X.
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What is the solution to the equation 9^(x+1) =27

Find the volume of the described solid.the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x.a) 441b) 147c) 864d) 882

Which representation has a constant of variation of -2.5