9x - 7x + 3y - 2y
X+ 5y

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.

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