Final answer:
To find the number of fish left in the pond, subtract the number of fish that drowned from the total number of fish. In this case, there were originally 20 fish in the pond, and 12 of them drowned. Therefore, there are 8 fish left in the pond.
Step-by-step explanation:
To determine the number of fish left in the pond, we need to subtract the number of fish that drowned from the total number of fish. In this case, there were originally 20 fish in the pond, and 12 of them drowned. To find the number of fish left, we subtract 12 from 20:
20 - 12 = 8
So, there are 8 fish left in the pond.