Divide the population of 65 or older by the percentage:
30.2 million / 0.122 = 247.54 million total population. (Round answer as needed)
The factors of 56 include
1 by 56
2 by 28
4 by 14
7 by 8
<u>ANSWER</u>

<u>EXPLANATION</u>
Given 
and

We want to find

This means we substitute the function
in to another function
and evaluate.
This implies that;

We expand the parenthesis to obtain;

We simplify further to obtain;

Hence the correct answer is A
C would be the correct answer. You caanot multiply just one part of an equation, you must multiply the whole thing. All of the other steps follow this rule, so C is an incorrect step, and is therefore the correct choice.
Hope this helps!