Question

Please respond these math questions

The formula W = 312 models the weight of a human fetus, W, in grams, after 1 weeks, where Osts 39. After how many weeks does the fetus weigh 588 grams? One possible reason for the explosion of college tuition involves the decrease in government aid per student. In 2001, higher-education revenues per student averaged $8500. The bar graph shows government aid per U.S. college student from 2005 through 2012. (All figures are adjusted for inflation and expressed in 2012 dollars.) Higher Education Government Aid per U.S. College Student 7100 7300 7600 7800 7300 7000 $9000 $8000 $7000 $6000 $5000 6600 6000 Government Aid per Student $4000 $3000 $2000 $1000 2005 2006 2007 2008 2009 2010 2011 2012 Year Source: State Higher Education Executive Officers Association The mathematical model G = -82x2 + 410x + 7079 describes government aid per college student, G, x years after 2005 a. Does the model underestimate or overestimate aid per student in 2011? By how much? b. If we project the model past 2012, determine in which year government aid per student decreased to $4127. $9.00 The bar graph shows the average price of a movie ticket for selected years from 1980 through 2013. The graph indicates that in 1980, the average movie ticket price was $2.69. For the period from 1980 through 2013, the price increased by approximately $0.17 per year. If this trend continues, by which year will the average price of a movie ticket be $9.49? Average Price of a U.S. Movie Ticket $10.00 8.38 S8.00 $7.00 6.41 $6,00 5.39 S5.00 4.23 4.35 S4.00 3.55 $3.00 2.69 7.89 Average Ticket Price $2.00 $1.00 1980 Ordinary People Ticket Price $2.69 1980 1985 1990 1995 2000 2005 2010 2013 Year 2013 12 Years a Slave Ticket Price $8.38 Sources: Motion Picture Association of America, National Association of Theater Owners (NATO), and Bureau of Labor Statistics (BLS)