3. [-17 Points) DETAILS WANEAC7 5.6.011. The demand for a company's e-reader can be approximated by 900) = 21-0.00 million units per year (30 S P S 600), where p is the price charged for the e-reader. Obtain a formula for price elasticity of demand E. E Calculate its value at the two endpoints of the given range of prices (20) 600) te the price that would maximize annual revenue within the range of prices shown? Yes No How would you know this without calitating that price The value (20) 21 and (600) 2 1. Therefore the price that would maximize revenue would result in 1. and select between 20 and 100 Need Help? Han