Step-by-step explanation:

Answer:
3
Step-by-step explanation:
You didn't provide answer choices, but since 0.4=4/10 is rational, adding any irrational value to it will produce and irrational sum.
An irrational number is any number which can not be expressed as a fraction of two integers.
I think the answer 5 over 2
Answer:
if there is an overabundance of predators then the predators might get competitive between themselves since most of the prey would be gone.
Step-by-step explanation: