Find the x-intercepts of the parabola with vertex (-4,12) and y-intercept (0,-36).
Write your answer in this form: (X1,Y1), (x2,y2).
If necessary, round to the nearest hundredth.

Simplify the expression. -2/5(10+15m-20n)

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?

Jorge wants to determine the enlarged dimensions of a digital photo to be used as wallpaper on his computer screen. the original photo was 800 pixels wide by 600 pixels high. the new photo will be 1,260 pixels wide. what will the new height be?