Answer: Lyn bought 8.25 yards of ribbon.
Explanation:
Given : Lynn paid $12.21 for ribbon.
The cost of ribbon per yard was $1.48.
Then by using division operation , the length of ribbon ( in yards) bought by Lyn is give by :-

Hence, the length of ribbon bought by Lyn =8.25 yards
i.e. Lyn bought 8.25 yards of ribbon.