math part one #16-28

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1.
1 point
17
2.
1 point
18
3.
1 point
19
4.
1 point
20
5.
1 point
21
6.
1 point
22
7.
1 point
23
8.
1 point
24
9.
1 point
25
10.
1 point
26
11.
1 point
27
12.
1 point
28