Final answer:
To round 49.672 to the nearest whole number, round up because the digit after the decimal point is greater than 5. Therefore, the answer is 50.
Step-by-step explanation:
To round 49.672 to the nearest whole number, look at the digit immediately to the right of the decimal point. In this case, it is 6. If the digit is 5 or greater, round up.
If the digit is less than 5, round down. Since 6 is greater than 5, we round up. Therefore, 49.672 rounds to 50.