The air in a room 16 ft by 10 ft by 10 ft is 4% carbon monoxide. Starting at tequals0, fresh air containing no carbon monoxide is blown into the room at a rate of 200 ft cubed/min. If air in the room flows out through a vent at the same rate, when will the air in the room be 0.01% carbon monoxide?

Joe owns a fast-food restaurant and wants to know the average time it takes for customers to receive their orders. his restaurant serves about 500 customers a day. he timed 5 orders, and the order times he collected, given in minutes, are shown below. can the approximate order fulfillment time for all of the restaurant's customers be calculated from the given data? if so, calculate it. non-integer answers should be rounded to the nearest tenth. if no assumption can be made, type "0" in the box. the approximate order fulfillment time for all of the restaurant's customers is minutes.