A produce and distributor of gift cards produces a boxes of cards per day at an average cost 7 (x) (in dollars) of 82 + 6000 (2) = Round your answers to the nearest cent, if needed. 2x + 300 a. Find the average rate of change in the average cost, as production increases from 60 boxes/day to 100 boxes per day. $ per day b. Find the average rate of change in the average cost, as production increases from 70 boxes/day to 100 boxes per day. per day $ Use the information presented in the table below. The information was excerpted from the business section of the American Medical News, February, 2012. It presents the number of jobs in an occupation in the year 2010 and the anticipated number of jobs in that occupation in the year 2020. Occupation 2010 2020 Health 45,200 62,000 Marketing/Sales 26,800 25,100 Find and interpret the average rate of change with respect to time of the number of jobs in physician assistant occupations. Round your result to the nearest whole number. The average rate of change over the 10 years of the number of jobs in physician assistant occupations is jobs per year. The buyer for a retail store located in a shopping mall has convinced himself that if he prices small personal fans at $x apiece, the weekly profit made by the store on sale of the fans will be given by the profit function P(x) = + 40x 220. a. If the store is currently selling the small personal fans for $10, what is the average rate of change in the weekly profit if it increases the selling price of each fan to $11. SA per week b. If the store is currently selling the small personal fans for $30, what is the average rate of change in the weekly profit if it increases the selling price of each fan to $31. $ per week