Answer:
12 lbs
Explanation:
When finding a percentage you move the decimal point of the percentage to the left twice.
Find the amount that was donated,
60 x 0.2 = 12
So 12 lbs were donated
You can also do it this way:
First we find the amount that was sold,
60 x .80 = 48
Then subtract 48 from the total of 60 to find the left over,
60 - 48 = 12