Please make Adjustment entries at 3/31/2015 for the following: 1. DFE Co. purchase supplies of #2,000 at 1/1/2015; supplies on hand at 3/31/2015 was $800. 2. DFE Co. received $20,000 from XYZ for as rent on 1/1/2015 for the first six month of 2015. 3. DFE Co. accured 2015 first quarter (from 1/1/15 to 3/31/15) vacation wages (but not yet paid) of $21,000. 4. DFE Co. has provided consulting service to XYZ, but not yet billed, $15,000.