249 is b reduced by 169

The system of equations graphed below has how many solutions?

Which is the completely factored from of xy^3-x^3y

Atriangle has an area of 72 square inches. if the base of the triangle has a length of 18 inches, what is the height of the triangle? use the formula for the area of a triangle: area = (base)(height) type a numerical answer in the space provided. do not include the units or spaces in your answer.