Answer: with 6 yards of ribbons we can wrap 24 presents.
Explanation:
For each 9 inches of ribbons, we can wrap one present, then if we have 6 yards we have:
1 yard = 36 inches
then 6 yards is equal to 6*36 inches = 216 inches
now, in how many pieces of 9 inches we can divide the 216 inches?
this is:
N = 216/9 = 24
for each one of those 24 pieces of 9 inches we can wrap a present, this means that with 6 yards of ribbons we can wrap 24 presents.