Answer:
Step-by-step explanation:
When converting numbers to one significant figure, you should round the number to the nearest power of 10. To do this, locate the first non-zero digit from the left and keep it as the only significant figure, while replacing all other digits with zeros.
41.87 becomes 40
125.3 becomes 100
So, when rounded to one significant figure:
41.87 becomes 40
125.3 becomes 100