b) In another lake there are 5,000 fish. It is estimated that 2,000 of these fish are carp. Approximately what percentage of the fish in this lake are carp?

To find the percentage of carp in the lake, you can use the formula: (number of carp / total number of fish) × 100. In this case, that’s (2,000 / 5,000) × 100 = 40%. So, approximately 40% of the fish in the lake are carp! Now, if you're ever in a fishing contest and someone asks you about carp populations, you can impress them with your sharp math skills! You can also relate this scenario to managing aquatic ecosystems where understanding fish populations helps maintain biodiversity.