Um. It might be 100. I do not now. Sorry
Answer:
I think 15.
Step-by-step explanation:
20 ÷ 5=4 and 5 × 3=15.
Answer:
9
Step-by-step explanation:
Answer: (A) 30%
Step-by-step explanation:
Given : The probability that a bird will lay an egg =0.75
The probability that the egg will hatch =0.50
Now, the probability that the egg will lay an egg and hatch = 
Also,The probability that the chick will be eaten by a snake before it fledges =0.20
Then, the probability that the chick will not be eaten by a snake before it fledges : 1-0.20=0.80
Now, the probability that a parent will have progeny that survive to adulthood will be :-

Hence, the probability that a parent will have progeny that survive to adulthood = 30%
Answer:
Step-by-step explanation:
I think it’s b correct me if I’m wrong