Answer:
not 5
Step-by-step explanation:
if you multiply something by 1/2, the product is half of that something.
if you multiply b by 1/x, the product is one x of b.
if you multiply anything by 1/4, the product is one quarter of anything.
You would multiply 18 machines x 16" for a total of 288 inches. You would then divide by 36 because there are 36" (or 3 feet) in a yard. The answer is 8 yards of tubing.