PLEASE HELP Triangle △A'B'C' is the image of △ABC under a dilation with a scale factor of 2. (graph below)

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax

Y=(x+3)(x-4)(x+1)^2 sulutions? multiplicity?

What is the slope of the line that contains the points (-2,1) and (0,-3)