X. (6 pts.) Four Tops Corp. sells three products, as follows: 3 units of A for each unit of C, and 2 units of B for each unit of A. The per unit contribution margins are $2, $6, and $9 for A, B, and C, respectively. Fixed costs are $950,000 and the target pretax profit is $40,000. Determine the number of units of A, B, and C needed to be sold to achieve the target profit. A= B= C=