Answer:
12 more people adopted a manatee this year.
Step-by-step explanation:
Convert 30% into a decimal. Divide the percentage by 100:
30 / 100 = 0.3
The problem can be solved with the following equation:
0.3(40) = difference
Multiply 0.3 by 40.
0.3 * 40 = 12
12 more people adopted a manatee this year.