The area of a parallelogram is a = bh. what is the area, in square units, of a parallelogram with vertices (-3,2), (0,7), (7,7), and (4,2).

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

Factor this polynomial completely x^2-64

The perimeter of a triangle is 69 cm. the first is 5 cm shorter than the second side. the third side is twice as long the first side. find the length of each side