Selected comparative statement data for Bluesky Company are presented below. All balance sheet data are as at December 31.

Calculate for 2017 the following:
(a) Asset turnover,
(b) Return on assets,
(c) Return on equity.

Net sales Profit Total assets Total common shareholders' equity 2017 $750,000 60,000 600,000 450,000 2016 $720,000 42,000 500,000 310,000