He began with 10. Because if he bought 8 after selling half of his books and now his total is 13, then 13-8=5
so 5+5=10
We want to determine the rational number which is one tick mark to the left of =

If the number is to the left, it must be less than =

Since there are 4 equal spaces between each number, the numbers between -1 and 0 are =

We can then see that the number one tick to the left of =
is -1.
<u><em>B.</em></u>
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They will need more but why dont they just keep their money?
Brian can order 5 t-shirts for the chess team.
Explanation:
The question is basically asking you how many times can 12 fit in 60 without going over. To find the answer, divide 60 by 12, and you’ll get 5. Therefore, Brian can order 5 t-shirts.