Use the following company information to calculate net cash provided or used by investing activities. (a) Long-term investments were sold for $48,500 cash, yielding a gain of $21,650. (b) Paid $69,500 cash for new machinery. (c) Sold land costing $33,500 for $39,000 cash, yielding a $5,500 gain. (d) Equipment with a book value of $190,000 and an original cost of $315,000 was sold at a loss of $24,500