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

Taking algebra two apex courses and need with these questions

The diagonals of a quadrilaretral intersect at (-1,4). one of the sides of the quadrilateral is bounded by (2,7) and (-3,5) determine the coordinates of the other side in order for the quadrilaretral to be a square.

Describe the symmetry of the figure. identify lines of symmetry, if any. find the angle and the order of any rotational symmetry.