Answer: 48 oz
Step-by-step explanation:
First and foremost, we should note that 1 pound = 16 ounces. That is 1lb = 16oz. Therefore, since Karen bought 3 lbs of cheese to serve at a picnic, the amount of oz of cheese that Karen bought will be three multiplied by 16. This will be:
= 3 × 16oz
= 48 oz
Therefore, Karen bought 48 ounces of cheese