vartable costs. Required: Totar variable costs Total fixed costs Whit vartatie cols 1 unt contritution matpin : 3. Combute the treak-even salis (enics) for the curers ver, x unitir tine variable cout unt contribution maroin ? X enits anlis units 6. Determine the muximum operating income possible with the dxpanded plard. C. In favor of the propesal becaise of the increase in treak-even polint. d. Reject the peoposal becaste if nuture saler remain at the current level, the incorne from eperations wal increase. Choose the cotrest answe