Answer:
20
Step-by-step explanation:
u have to look at the 9 after the decimal and if it is 5 or above then it goes up
Answer:
the explanation is in the picture
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So all you do is the exponents first the add multiply and divide until you get your answer. C
Answer:
D. 2 2 • 9 • 10
Step-by-step explanation:
180
/ \
2 90
/ \
2 45
/ \
3 15
/ \
3 5