Help me on B and C pls

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

What is x3+3x2−16x−48 divided by x−1?

The volume, v, of a rectangular prism is determined using the formula, where / is the length, w is the width, and his theheight of the prism. carltren solves for w and writes the equivalent equation w=using this formula, what is the width of a rectangular prism that has a volume of 138.24 cubic inches, a height of 9.6 inches,and a length of 3.2 inches?