Answer: 52 g
Explanation:
Hi there,
I hope you and your family are staying safe and healthy!
The formula to use is:
Average weight = (28% * 45 gm) + (72% * 55 gm)
= (0.28 * 45) + (0.72 * 55)
= 52.2 g
Thus, the answer is 52
Happy to help! All the best this semester!
~Garebear