In a auditorium, there are 9 rows of seats with 18 seats in each row. there are also 6 rows of seats with 24 in each row. how many seats are there in the auditorium? estimate first. then check for reasonableness

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?

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

Find the area of the triangle formed by the origin and the points of intersection of parabolas y=−3x^2+20 and y=x^2−16.