The length of a rectangular room is five yards and the width is four yards. If carpet costs twenty dollars per square yard, how much will the carpet for this room cost? A) $240
B) $320
C) $360
D) $400

What are the solutions to the equation 4x2+3x=24-x

David is spreading mulch on a triangular area of his flower bed. the coordinates of the vertices of the area are (1, 3), (9, 3), and (4, 6). what is the area of the triangle if each square has an area of 3 square feet?

Simplify the expression below -3(10x+4y)+6(6x-2y)