UPCI I REVIEW This Question: 1 pt 2 of 28 (1 complete) v The graph shows the percentage of high school seniors who used alcohol or marijuana during the 30 days prior to being surveyed. The data can be described by the following mathematical models, where n is the number of years after 1980, A is the percentage of seniors using alcohol, and M is the percentage of seniors using marijuana A= -0.8n +57 M= -0.5n+24 Alcohol and Marijuana Use by High School Seniors Alcohol Percentage 80 70 60- 50- 404 30- Marijuana 20- 10- 0+ 1980 1985 1990 1995 2000 '05 '09 Year a. Use the appropriate line graph to determine the percentage of seniors who used marijuana in 1985 30 % (Type a whole number.) b. Use the appropriate formula to determine the percentage of seniors who used marijuana in 1985. % (Type an integer or a decimal.) Does the formula underestimate or overestimate the actual data shown by the graph? By how much? The formula by% c. Use the appropriate line graph to estimate the percentage of seniors who used alcohol in 1985. Tor it. -- Click to select your answer(s). (1,1) More Type here to search​

Solve the equation - 2(m -30) = -6m a-15 b-13 c-8 d8

It appears that people who are mildly obese are less active than leaner people. one study looked at the average number of minutes per day that people spend standing or walking. among mildly obese people, the mean number of minutes of daily activity (standing or walking) is approximately normally distributed with mean 376 minutes and standard deviation 64 minutes. the mean number of minutes of daily activity for lean people is approximately normally distributed with mean 528 minutes and standard deviation 107 minutes. a researcher records the minutes of activity for an srs of 7 mildly obese people and an srs of 7 lean people. use z-scores rounded to two decimal places to answer the following: what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 mildly obese people exceeds 420 minutes? what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 lean people exceeds 420 minutes?

Mr.zimmerman invested $25,000 in an account that draws 1.4 interest, compouneded annually. what is the total value of the account after 15 years