Answer
Difference between the heaviest and lightest kitten = ¼ pound
Step-by-step explanation
We can see from the number line in the question that the spaces from 0 to 1 are eight in number. This means that each space has a value of (1/8)
So for the kitten that weighed the least, it's at the third small line from 0, indicating that
Weight of the smallest kitten = (3/8) pound
And for the heaviest kitten, it is at the fifth small line in between 0 and 1.
Weight of the heaviest kitten = (5/8) pound
Difference between the weight of the heaviest and lightes kitten
Difference = (5/8) - (3/8) = (2/8) = (1/4) pounds
Hope this Helps!!!