help please

236) The comparative income statements for Silverlight Company are shown below. Calculate the following ratios for 2018: (a) profit margin (b) gross margin (c) times interest earned. Silverlight Company Income Statements For Years Ended December 31. 2018 2017 Net sales $720,000 $607,500 Cost of goods sold 450,000 382,700 Gross profit $ 270,000 $224.800 Operating expense 168,500 134.900 Income from operations $101.500 $ 89,900 Interest expense 22,300 11,200 Income before taxes $ 79,200 $ 78,700 Income taxes 28,000 27.000 Net income $ 51,200 $ 51,700