Final answer:
To solve for the variable 'a' in the equation 16 = (-4) * a, you divide both sides by -4. The answer is b) -4.
Step-by-step explanation:
The question appears to be a simple algebra problem where one is required to solve for the variable 'a'. The equation given is 16 = (-4) * a. To find the value of 'a', you would divide both sides of the equation by -4, which gives a = -4. Out of the options provided, the correct answer is b) -4.
The additional information provided does not seem to pertain directly to this problem. It is likely that the student is working on a set of different problems, and these are some of the other questions or statements from that set. While these are interesting, they do not have relevance to the equation we are solving.
The answer is b.