now take the checkpoint and show what youve learned thus far. it will check your understanding of the…

now take the checkpoint and show what youve learned thus far. it will check your understanding of the concepts. if you have prepared thoroughly, you should do well. if you have not, now is a good time to go back and review. t read over your notes. if you are unsure about anything, ask for help now. good luck! checkpoint 12 listen approximately how many smokers first start before the age of 18? 90 percent 70 percent 50 percent 30 percent

now take the checkpoint and show what youve learned thus far. it will check your understanding of the concepts. if you have prepared thoroughly, you should do well. if you have not, now is a good time to go back and review. t read over your notes. if you are unsure about anything, ask for help now. good luck! checkpoint 12 listen approximately how many smokers first start before the age of 18? 90 percent 70 percent 50 percent 30 percent

Answer

Answer:

A. 90 percent

Brief Explanations:

It is a well - known statistic in health - related knowledge that approximately 90 percent of smokers first start before the age of 18.