8. [-/5 Points] DETAILS TANAPCALC10 2.3.018. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A manufacturer has a monthly fixed cost of $100,000 and a production cost of $16 for each unit produced. The product sells for $20/unit. (a) What is the cost function, C(x)? C(X) = (b) What is the revenue function, R(x)? R (X ) = (c) What is the profit function, P(x)? P( X ) = (d) Compute the profit (loss) corresponding to production levels of 9,000 and 36,000 units. P(9,000) units to P(36,000) units Need Help? Read It Watch ItChildren's Drug Dosages A method sometimes used by pediatricians to calculate the dosage of medicine for children is based on the child's surface area. If a denotes the adult dosage (in milligrams) and S is the child's surface area (in square meters), then the child's dosage is given by the following function. If the adult dose of a substance is 450 mg, how much should a child whose surface area is 0.6 m2 receive? (Round your answer to the nearest milligram.) :lmg 0. [-I3 Points] DETAILS TANAPCALC10 2.3.022. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Drinking and Driving Among High School Students The percentage of high school students who drink and drive stood at 17.5% at the beginning of 2001 and declined linearly to 10.3% at the beginning of 2011.'r (a) Find a linear function f(t) giving the percentage of high school students who drink and drive in year t, where t = 0 corresponds to the beginning of 2001. (b) At what rate was the percentage of students who drink and drive dropping between 2001 and 2011? (c) If the trend continues, what will the percentage of high school students who drink and drive be at the beginning of 2015