Solve the system of equations below. Using the method of your preference. [Show work] -9y + 4x = 20 -7y +16x = 80

An equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is

Which of the following points is collinear with (-2,1) and (0,3)

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.