Answer:60
Step-by-step explanation:
There are 80 chairs in all because 8 rows x 10 chairs per row. The first people fill two rows which is 20 chairs because each row is 10 chairs so 60 chairs are left
Answer:
15.25
Step-by-step explanation:
I hope that helps please don't report I tried my best
Answer:
8
Step-by-step explanation:
i would say in between 8&9 bc the square root of 8 is 36 and 9 is 81 and that's right in the middle
Answer:

Step-by-step explanation:
So if it can vary by 75 or less, the least it can be is 1,125 and the greatest it can be is 1275.
Therefore it must be between or equal to these two.
The answers are:
1,125
And
1,260