Questions 7 and 10

7. DETAILS The rate of growth of a population of a city is given by: P' = 2000+1-04 where P is the population and t is the number of years past 2015. If the population in the year 2015 is 50,000, what is the predicted population in the year 2025? O 107,498 O 746,943 O 5.45 Billion O 157,498 Submit Answer View Previcos Question Question 7 of 15 View Home My Assignments + Request ExtIMPORTANT: You do NOT need to show work for the fill in blank problems. 10 DETAILS Find and interpret the marginal cost at 20 units if the total cost function is: C(x) = 4x2+ 200 in dollars with x being the number of units. The cost of the 21 Stitem is $160 O The cost of making 20 items is #1800. The cost of the 20thitem is $160 O The cost of making 21 items is $1800 Submit Answer View Previous Question Question 10 of Home My Assignments + R