Simplify the expressions2x + 5x +12x
2 answers:
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Answer: 30 percent of people who do not brush theit teeth every night.
Step-by-step explanation:
Given : 7 out of 10 people brush their teeth every night.
That means 3 out of 10 people do not brush their teeth every night. (7-10=3)
Now, the percent of people who do not brush their teeth every night =
Hence, 30 percent of people who do not brush theit teeth every night.