Final answer:
To find the sum of 30.01 + 5.55 + 80.761 with the correct number of significant figures, add the numbers together and round the result to three significant figures.
Step-by-step explanation:
To find the sum of 30.01 + 5.55 + 80.761 with the correct number of significant figures, we add the numbers together and then round the result to the appropriate number of significant figures.
30.01 + 5.55 + 80.761 = 116.321
Rounded to three significant figures, the answer is 116.