W.C. Cycling had $55,000 in cash at year-end 2011 and $25,000 in cash at year-end 2012. The firm invested in property, plant, and equipment totaling $250,000. Cash flow from financing activities totaled + $170,000.

a. What was the cash flow from operating activities?

b. If accruals increased by $25,000, receivables and inventories increased by $100,000, and depreciation and amortization totaled $10,000, what was the firm's net income?