Final answer:
To solve for w in the volume formula for a rectangular prism, divide both sides of the equation v = lwh by lh.
Step-by-step explanation:
The volume of a rectangular prism can be computed using the formula v = lwh. To solve for w, we need to isolate w on one side of the equation.
First, divide both sides of the equation by lh: w = v / (lh).
So the correct equation solving for w is w = v / (lh). Therefore, option a) w = v/lh is the correct answer.