Good accounting form and solution please thank you

1. On December 1, DOS Corporation issued 1,000 shares of its P10 par ordinary share capital and 2,000 shares of its P10 par preference share capital for a lump sum of 40,000. At this date, ordinary share is selling for 18 per share and the preference share for 13.50 per share. How much should the "Ordinary Share Capital" account be credited? (The entry to record the issuance of the shares serves as the solution for this problem)

2. On December 1, TRES Company sells 3,000 of merchandise on account to QUATRO with credit terms of 2/10, net/30. Two days after, the buyer returned 500 worth of merchandise due to defects. How much should Quatro remit to Tres on December 12?

3. On December 18, 2020, UNO Corporation issued 5,250 ordinary shares, par P30 for P58 per share. At what amount will shareholders' equity increase upon issuance?