Final answer:
To solve the problem using the correct number of significant figures, add the given values and round to the appropriate number of significant figures. In this case, the final answer is 58.7 mL.
Step-by-step explanation:
To solve the problem using the correct number of significant figures, you need to consider the rules for significant figures addition. In this case, you need to add the given values:
14.825 mL + 18.5 mL + 25.37 mL = 58.695 mL
Since the given values have three significant figures (the decimal point is not significant), the answer should have three significant figures as well. Therefore, the final answer is 58.7 mL.