If 18 inches is equal to 1 feet, how many feet is a -inch board? A -inch board? A -inch board?

First, you can figure out the relationship between and , then and , then and . With this information, it will be easier to solve for number of feet. Or, you can find the number of inches in one foot first.

is three times . To find how many feet inches is, you would need to multiple by three, since is equal to inches. Use this information to help you with the rest of the problem.