This is for my BUSN278 class. The question is "Using the table Computer Sales Time Series, calculate the mean absolute deviation for a 6-day moving average." I've linked the table and the answer choices below. Please help!

The revenues of a company increased by 39% in year one and decreased 22% in year two. what is the overall change over the two-year period?

Why does an organization prepare a balance sheet? a. to reveal what the organization owns and owes at a point in time b. to reveal how well the company utilizes its cash c. to calculate retained earnings for a given accounting period d. to calculate gross profit for a given accounting period

Taking commercial paper means the holder acts honestly