Which expression is equivalent to 34 ⋅ 3−9?

Find the height of a square pyramid that has the volume of 32 ft.³ and a base lengthof 4 feet

What is the sum of these mixed numbers 2 1/8 + 4 3/8

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?