Answer: 350.849 g
Step-by-step explanation:
The question is asking the masses of water, sugar, and the beaker to be added together. So, it can be understood that we need to add all of the masses up as follows to get the combined mass:
263.2 g + 87.10 g + 0.549 g = 350.849 g
From this, we can determine that the combined mass of the beaker, water, and sugar (in grams) is 350.849 g.