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Someone pls help me with 7 and 8, thank you so much!!

Someone pls help me with 7 and 8, thank you so much!!
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2 votes
Someone pls help me with 7 and 8, thank you so much!!

Someone pls help me with 7 and 8, thank you so much!!-example-1
User Jandersson
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7. A. -18 cm, because it changes -3 cm/per year, so multiply 6 years by -3 cm to get -18 cm

8. D. $20, because it rose +$2 over 10 days, you multiply 10 days by $2 to get $20 total
User Xaxa
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