please answer and explian

a. Equipment with a book value of $83,000 and an original cost of $162,000 was sold at a loss of $34,000. b. Paid $115,000 cash for a new truck. c. Sold land costing $330,000 for $420,000 cash, yielding a gain of $90,000. d. Long-term investments in stock were sold for $94,900 cash, yielding a gain of $14,750. Use the above information to determine this company's cash flows from investing activities. (Amounts to be deducted should be indicated with a minus sign.) Cash flows from investing activities