Answer:
Can you give me the choices for each of these, I'm not sure how they might phrase it.
The answer is D, Cavalieri's Principle
Answer:
6+2
Step-by-step explanation:

Distribute the negative in.
<u>Negative</u><u> </u><u>Multiply</u><u> </u><u>Negative</u><u> </u><u>must</u><u> </u><u>equal</u><u> </u><u>Positive</u><u>.</u>
