During the current year, Wildhorse Corporation did not purchase any property, plant and equipment, but sold land with a book value of $8500 for $14200 cash and sold a delivery truck with a cost of $20200, depreciation of $18200, and an appraised value of $7200 for $6200. What is Wildhorse's net cash flows provided by investing activities for the year? $7700 $28700 $15700 $20400