Find the derivative of f(x).
f(x) = -1 + e^x/x

Lois and clark own a company that sells wagons. the amount they pay each of their sales employees (in dollars) is given by the expression 12h+30w12h+30w where hh is the number of hours worked and ww is the number of wagons sold.

Which answer is the solution set to the inequality |x|< 9? a. x< -9 or x> 9 b. x> -9 and x< 9 c. x> -9 or x< 9 d. x< 9 and x< 9

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2