Coffee is draining from a conical filter into a cylindrical coffeepot at the rate of 10 in./min. Complete parts (a) and (b). 8" a. How fast is the level in the pot rising when the coffee in the cone is 7 in. deep? 0.199 in./min (Round to three decimal places as needed.) b. How fast is the level in the cone falling then? 8" -8" (Round to three decimal places as needed.)