Answer:
Step-by-step explanation:

<h2>1. Is the number 5 prime, composite,</h2><h2>or neither?</h2><h3>The number 5 is prime since it can only be divided by itself and 1.</h3><h3 /><h3>Hope I helped. :)</h3>
Answer:
-18.
Step-by-step explanation:
They're both negative numbers being added to each other, so you'd add 6 and 12 (which is 18) and then put a negative sign before the 18. Therefore, your answer is -18.
I hope this helps, have a nice day.