6 + 21 = 27 (Add six ones)
60 + 21 = 81 (Add six tens)
I hope this helps:)
I'm sorry if it doesn't:(
Answer:
-4x^2+6x-2
Step-by-step explanation:
Answer
9 4 -7 -4
Step-by-step explanation:
Answer:
Is there suppose to be a picture?
Step-by-step explanation:
You can't really determine the amount of computers from this question, they're obviously not going to have one computer for everyone so half third, or even a fourth of the school population