We can count 31 eggs in this cluster. If they're expected to be equal, we do:
3x31 = 93.
Angelina will expect 93 baby snails.
If usually 15% of them die from natural causes, (survival of the fittest) how many would be there? Estimated?
If 15% die, we have 85% surviving. So:
0.85*93 = 79.05.
About 79 baby snails will survive and 14 will die.