Tara's music teacher requires students to practice their instrument at least 9 hours each week. Tara usually spends 2.5 hours practicing on weekends. She also plans to practice an equal amount on Tuesday, Wednesday, and Thursday this week. In addition to the weekend hours, how many hours must she practice each of those days to achieve at least 9 hours of practice? Anyone have the steps to solve?

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.