lalamcg115
Answered

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From 1999 to 2000, the number of days of unhealthy air quality in Charlotte, North Carolina, dropped from 5 to 2. Find the percent of decrease in the number of days of unhealthy air.


A.
15%


B.
6%


C.
1.5%


D.
60%

Sagot :

thisluheadjit
Wait let me see here

Answer: it’s D which is 60%, hope it helps

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