Cant figure out this answer need help thank you.

a. Equipment with a book value of $80,500 and an original cost of $160,000 was sold at a loss of $31,000. b. Paid $115,000 cash for a new truck. c. Sold land costing $320,000 for $425,000 cash, yielding a gain of $105,000. d. Stock investments were sold for $96,300 cash, yielding a gain of $14,750. Use the above information to determine cash flows from investing activities. Note: Amounts to be deducted should be indicated with a minus sign