Answer:
13 feet
Step-by-step explanation:
recall that 1 yard is equivalent to 3 feet.
Hence 5 yards = 5 yards x 3 ft/yard = 15 feet
It is given that he already has 2 feet of trim,
hence he will need to buy
5 yards - 2 feet
= 15 feet - 2 feet
= 13 feet