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Please help me with 15 -18 and 20 and 21

Please help me with 15 -18 and 20 and 21-example-1
User Thimma
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1 Answer

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15. You can literally write any number (except 0)
16. 1/2 = 2/4 and 2 2/3
17. 12 2/3
18. 1776 ft tall
20. A, D, and E
21. A, B, and C

I hope this helped ^^
User Jimmy Kane
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8.3k points