A. 135
b. 120
c. 144
d. 108

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

Jessica is organizing a guided tour of the rain forest. the average profit per person that the touring company makes is given by the rational expression 18x+35/x, where x is the number of people going on the tour. what does the numerator of this rational expression represents?