another chegg tutor already got this incorrect. i really need the corrwct answer. to clarify, it is asking about 4 weeks not 4 years (as the other guy thought)

Marianne Kramer, the owner of Handy Man Rentals, rents carpet cleaners to contractors and walk-in customers. She is interested in arriving at a forecast of rentals so that she can order the correct quantities of supplies that go with the cleaners. Data for the last 10 weeks are shown here. Week Rentals 4 1 14 2 19 3 34 9 5 15 6 17 7 28 26 8 35 10 12 13 a. Prepare a forecast for weeks 6 through 10 by using a 4-week moving average (Enter your responses rounded to two decimal places.) Week 6 Forecast 23.50 23.00 7 8 21.50 9 23.75 10 23.25 What is the forecast for week 112 22 rentals (Enter your response rounded to two decimal places.) b. The mean absolute deviation as of the end of week 10 is 9.21 rentals. (Enter your response rounded to two decimal places.)