I cant seem to get C, Can you also show how to set up the equation?

Problem 8-17 Calculation of Gain or Loss, Installment Sales (LO 8.8, 8.10)

Steve Drake sells a rental house on January 1, 2019, and receives $100,000 cash and a note for $50,000 at 7 percent interest. The purchaser also assumes the mortgage on the property of $25,000. Steve's original cost for the house was $170,000 on January 1, 2011 and accumulated depreciation was $27,000 on the date of sale. He collects only the $100,000 down payment in the year of sale.

a. If Steve elects to recognize the total gain on the property in the year of sale, calculate the taxable gain. 32,000

c. Assuming Steve collects $5,000 (not including interest) of the note principal in the year following the year of sale, calculate the amount of income recognized in that year under the installment sale method.

Round your answer to the nearest dollar.