I don't if there is more context in this problem, but i got -144=-3. this is usually the answer when your checking something, which in this case it would be false. hope I was able to help! ;)
Answer:
6
Step-by-step explanation:
-3+10-1
10-4
=6
hope this helps

Multiply without the decimal points, then put the decimal point in the answer

2.439 has 3 decimal places
10.2 has 1 decimal place
Therefore, the answer has 4 decimal places
Answer:
B. Sometimes
Step-by-step explanation:
Adjacent angles are supplementary only if they form a straight line. So the answer is sometimes.