Answer: 26 pink salmon, 9 yellowfin tuna and 9 bluegill.
Explanation:
If there are 44 fish in the pond and the experimental probability of pink salmon is 60%, we multiply 0.06 by 44 to get 26.4 which can be rounded to 26 pink salmon. If the experimental probability of both, yellowfin tuna and bluegill is 20% each and there are 44 fish in that very pond, we multiply both of the probabilities with 44 to get 8.6 which can be rounded to 9 thus 9 of both fish.