Answer:
16
Step-by-step explanation:
Given data
The total mass of meat is the sum of the meat from both packages.
1.76 lb + 2.29 lb = 4.05 lb
If we divide the total amount of meat by the amount of meat per hamburger, we will find the number of hamburgers.
4.05 lb / (0.25 lb/ hamburger) = 16 hamburger
Sonia can prepare 16 hamburgers.