Question: Tracy used a piece of wire 4 feet long to support tomato plants in the garden. The wire was cut into pieces 6 inches long. How many pieces did she obtain?
Answer: 
If Tracy used a piece of wire 4 feet long, since 1 foot is equal to 12 inches, the total length of the wire in inches was 12*4=48 inches.
Since the wire was cut into pieces 6 inches long, Tracy obtained 48/6=8 pieces