(1) The following data exists for Mather Company. (5 points) 2022 2021 $ Accounts Receivable 80,000 $ 70,000 Net Sales 560,000 410,000 Calculate the accounts receivable turnover and the average collection period in days for 2022. (2) Determine the interest on the following notes: (5 points) (a) $5,000 at 6% for 90 days. (b) $800 at 9% for 5 months. (c) $6,000 at 8% for 60 days (d) $1,600 at 7% for 6 months