include the necessary calculation steps as well

The balance sheet data of Brown Company at the end of 2017 and 2016 follow. Land was acquired for $30,000 in exchange for common stock, par $30,000, during the year; all equipment purchased was for cash. Equipment costing $10,000 was sold for $3,000; book value of the equipment was $6,000. Cash dividends of $10,000 were declared and paid during the year. Compute net cash provided (used) by: (a) operating activities. (b) Investing activities. (c) Financing activities