4. B. Mann has the following purchases for the month of November 2020. 2020 Nov. 1 Nov. 3 Nov. 15 From K. Khan: 4 radios at $30 each, 3 music centres at $160 each. Less 25% trade discount (ledger p. 84) From A. Bell: 2 washing machines at $200 each, 5 vacuum cleaners at $60 each, 2 dish dryers at $150 each. Less 20% trade discount (ledger p. 208) From J. Kelly: 1 music centre at $300. 2 washing machines at $250 each. Less 25% trade discount (ledger p. 11) 3rd Form Nov. 20 Nov. 30 Principles of Accounts Module 6 From B. Powell: 6 radios at $70 each. Less 33 1/3% trade discount (ledger p. 187) From B. Lewis: 4 dish dryers at $200 each. Less 20% trade discount (ledger p. 66) Required: a) Enter up the purchases book for the month on page 177. (10 pts.) b) Post the transactions to the suppliers' accounts. Their reference numbers are shown in brackets after each transaction. The reference number will be used under the column of the folio. (15 pts.) c) Transfer the total to the purchases account on page 99 of the general ledger. (3 pts.)