Zing Cell Phone Company entered into the following transactions involving current liabilities during 2020 and 2021. Mar. Apr. May 2020 14 Purchased merchandise on credit from Ferris Inc. for $148,000. The terms were 1/10, n/30 (assume a perpetual inventory system). 14 Zing paid $29,000 cash and replaced the $119,000 remaining balance of the account payable to Ferris Inc. with a 34, 60-day note payable. 21 Borrowed $129,000 from Scotiabank by signing a 2.0%, 90-day note. 7 Paid the note to Ferris Inc. at maturity. 7 Paid the note to Scotiabank at maturity. Dec. 15 Borrowed $104,000 and signed a 3.25%, 120-day note with National Bank. Dec. 31 Recorded an adjusting entry for the accrual of interest on the note to National Bank. 2021 Required: 2 Paid the note to National Bank at maturity. 1. Determine the maturity dates of the three notes just described. Ferris Inc. Scotiabank National Bank Maturity date: