<u><em>Answer: a. associate property.</em></u>
Explanation: Associate property is a grouping in addition and multiply can be switch. But this question it's about the order of operations. It stands for p-parenthesis, e-exponents, m-multiply, d-divide, a-add, and s-subtract. It can also go left to right. (PEMDAS)
Like this: → 
First do parenthesis first.

And then subtract left to right.

*The answer must be have a positive sign.*
Final answer: 
Hope this helps!
Thank you!
Have a great day!
-Charlie
Answer:
We could define a function where the domain X is again the set of people but the codomain is a set of numbers. For example, let the codomain Y be the set of whole numbers and define the function c so that for any person x, the function output c(x) is the number of children of the person x.
Step-by-step explanation:
Answer:
I've done this question: Its batch 5
Step-by-step explanation:
It has to be all equal proportions
I hope this helps you understand how to do the problem.