Incorrect. This will not help him figure out the total length of pipe he has available. Imagine that he has two total pipes. The length will be $\displaystyle{48}\cdot{2}\usepackage{cmbright}\Huge\$ . If he has three pipes, the length will be $\displaystyle{48}\cdot{3}\usepackage{cmbright}\Huge\$ . What is the length for x number of pipes?