Answer:
A!!!
Step-by-step explanation:
i just took the test
I want more points next time....Hehehee!
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<em>Solution in attachments!</em>
Answer:
30=2*3*5, so it's 30
Step-by-step explanation:
15=3*5, so it's not 15
20=2*2*5, so it's not 20
30=2*3*5, so it's 30
57=19*3, so it's not 57