The error is when you multiply -7 by -1 it is 7 not -7 so,
-14+7-21
-7-21
-28
Also where did r come from you asking 2 different questions
Answer:
120
Step-by-step explanation:
I am taking the test rn
Well as far as abbreviation I would put 78°C
If two integers product is:
- <u>Positive:</u> then the integers were both negative or both positive (same sign)
- <u>Negative:</u> then the integers consisted of one negative and one positive (opposite signs)
