Use the following to answer questions 47-49: Selected financial data for Barnstable Company appear below: 19x9 19x8 (in thousands) Sales $1,500 $1,200 Operating Expenses 450 400 Interest Expense 75 30 Cost of Goods Sold 900 720 Dividends Declared and Paid 30 0 Question 47: For 19x9, the gross margin as a percentage of sales was: a 5%. b 60%. c 10%. d 40%. Question 48: 1 pts For 19x9, the net income before taxes as a percentage of sales was: For 19x9, the net income before taxes as a percentage of sales was: a 10%. b 3%. c 8%. d 5%. Question 49: 1 pts For 19x9, the net operating income as a percentage of sales was: For 19x9, the net operating income as a percentage of sales was: a 70%. b 8%. c 10%. d 40%.