Copyright Goodheart-Willcox Co., Inc. Chapter 9 Tobacco 283 Math Practice The graph below shows the trend in smoking rates for adults over a period of almost 50 years. The graph also shows the trend for a 20-year period. Analyze the graph and answer the following questions. 23. What has been the general trend of smoking among adults? A. The smoking rate has increased. B. The smoking rate has decreased. C. There is no trend. D. The smoking rate has increased, decreased, and increased again. 24. What has been the general trend of smoking among high school students? A. The smoking rate has increased. B. The smoking rate has decreased. C. There is no trend. D. The smoking rate has increased and then decreased. 25. Compare the smoking rate for high school students when data was last collected to the high school student goal (percentage) projected for 2020. What is the difference in percentage between these smoking rates? A. 3% B. 2% C. 1.9% D. 1% Chapter 9 Skill Development Skill Development Core Skills Reading and Writing Practice Read the passage below and then answer the questions. Addiction to nicotine can happen quickly. Researchers found that 25% of teenage smokers reported feeling addicted within 30 days of having their fi rst cigarette. fi One in ten of the teenagers reported feeling addicted within only two days of smoking their fi rst cigarette. fi Nicotine is the chemical in tobacco that causes people to become addicted to tobacco products. Nicotine dependence is one of the most common and powerful types of chemical dependence. 26. What is the author’s main idea in this passage? A. Studies conducted about nicotine’s addictive effects are inconclusive. B. Teenagers smoke because they don’t think they will become addicted. C. One in ten teenagers smoke cigarettes. D. Addiction to nicotine can happen quickly. 27. According to the study mentioned, what percentage of teenage smokers reported feeling addicted within 30 days of having their fi rst cigarette? fi A. 30% B. 25% C. 10% D. 1% 28. According to the study, what percentage of teenagers reported feeling addicted within only two days of smoking their fi rst cigarette? fi A. 30% B. 25% C. 10% D. 1% 29. What portion of adults started smoking at age 30? A. The study does not say. B. The majority of adults. C. Almost no adults. D. 30% of adults. 30. Write a few sentences in response to the last sentence of the passage. What evidence can you cite from the chapter to support this claim? Trends in Cigarette Smoking by High School Students and Adults Students Adults 2020 Goal Students 16% Adults 12% 2020 2011 2010 2007 2004 2001 1998 1995 1992 1989 1986 1983 1980 1977 1974 1971 1968 1965 0 5 10 15 20 25 30 35 40 45 Percent (%) Year 18.1% 19% Assess Assess