At December 31, 2020. the balance sheet of Meca International included the following shareholders' equity accounts: Shareholders' Equity ($ in millions) Common stock, 60 million shares at $1 par $ 60 Paid-in capital-excess of par 480 Retained earnings 510 Required: Assuming that Meca International views its share buybacks as treasury stock, record the appropriate journal entry for each of the following transactions: (If no entry is required for a transaction/event, select "No journal entry required" In the first account fleld. Enter your answers in millions (1.e., 10,000,000 should be entered as 10).) 1. On February 12, 2021, Meca reacquired 1 million common shares at $10 per share. 2. On June 9, 2022. Meca reacquired 2 million common shares at $7 per share. 3. On May 25.2023. Meca sold 2 million treasury shares at $13 per share. Determine cost as the weighted-average cost of treasury shares. 4. For the previous transaction, assume Meca determines the cost of treasury shares by the FIFO method