542 of material is available to make an open top box for which the length of the base is twice as long as the width, find the width of the box of largest possible volume.

What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.

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?

Find the value of x. also give me an explanation so i can complete it to other questions as well, : )