Answer:

Step-by-step explanation:
I ain't sure but it might help you out:D
Answer:
3- (-5) + -2.
Step-by-step explanation:
Anything plus a negative number will either make that negative number go closer to zero, or turn into a positive number.
Answer:
I'm not quite sure what your question is.
3,868,000,000 is your answer. Move the decimal to the right 9 times. That gives you 6 extra 0’s.
1200*8/10=960
You can predict that about 960 students participate in after school activities.
Hope this helps!