Answer: C
Step-by-step explanation: the other two options are both wrong, 0.13 is larger than 0.125 and she did order by volume per fish.
Answer:
You can distribute the cookies and candies in four ways.
Step-by-step explanation:
Since cookies and candies are indistinguishable, we can use a combination. In this case represents the number of possible ways to distribute (without repetition) the cookies and candies (p) among a given number of children (n):

Z^2
You can substitute (a+bi) for z.
z^2 can also be written as z times z (like you multiply z by z)
I hope that makes sense!