I just need the answer to question 8 please

Fiscal years ending on Sunday closest to August 31 Selected Income Statement Data 2017 2016 2015 2014 2005 2000 $126,172 2,853 129,025 $116,073 2,646 118,719 $113,666 2,533 116,199 $110,212 2,428 112,640 $51,862 1,073 52,935 $31,621 544 32,164 111.882 12,950 102.901 12,068 101,065 11,445 98,458 10.899 46,347 5,044 28,322 2.755 82 78 65 63 53 42 16 7 124,914 4,111 115,047 3,672 112,575 3.624 109,420 3.220 51,460 1,474 31.126 1,037 Net sales Membership fees Total revenue Operating expenses Merchandise costs Selling, general and administrative Preopening expenses Provision for impaired assets and store closing costs Total operating expenses Operating income Other income (expense) Interest expense Interest income and other, net Income before income taxes Provision for income taxes Net income Diluted net income per share Dividends per share (not including special dividend of $7.00 in 2017 and $5.00 in 2015) Millions of shares used in per share calculations (39) 54 (134) 62 4,039 1,325 2,714 6.08 1.90 (133) 80 3.619 1.243 $ 2,350 $5.33 $1.70 (124) 104 3,604 1.195 $ 2,377 $5.37 $1.51 (113) 90 3,197 1.109 $ 2,058 $4.65 $1.33 (34) 109 1.549 486 $ 1,063 $2.18 0.43 1,052 421 631 1.35 $ $ $ $ $ 0.00 440.9 441.3 442.7 442.5 492.0 475.7 2017 2016 2015 2014 2005 2000 Balance Sheet Data $ Cash and cash equivalents Merchandise inventories Current assets Current liabilities Net property and equipment Total assets Long-term debt Stockholders' equity $ 4,546 9,834 17,317 17.485 18,161 36.347 6.573 10.778 $ 3,379 8.969 15.218 15,575 17.043 33,163 4,061 12.079 $ 4,801 8,908 16,779 16,539 15,401 33,017 4,852 10,617 $ 5.738 8,456 17,588 14,412 14,830 33,024 5.093 12,515 $ 2,063 4,015 8.238 6,761 7.790 16,514 711 8,881 525 2,490 3,470 3,404 4,834 8,634 790 4,240 Cash Flow Data $ 6,726 $ 3,292 $ 4,285 $3,984 $ 1.773 $ 1,070 Net cash provided by operating activities Warehouse Operations 715 686 663 634 417 292 28 33 26 30 21 25 (2) (4) (3) (1) (5) (4) 741 686 Warehouses in operation at beginning of year New warehouses opened (including relocations) Existing warehouses closed (including relocations) Warehouses at end of year Net sales per warehouse open at year-end (in millions) Average annual growth at warehouses open more than a year (excluding the impact of changing gasoline prices and foreign exchange rates) 715 162 663 $ 166 433 120 313 101 $ 170 $ $ 166 $ $ 4% 4% 7% 6% 7% 11% Members at year-end 10,800 10,800 10,600 10,400 5,000 4,200 38,600 49.400 42,600 Businesses, including add-on members (000s) Gold Star members (000s) Total paid members Household cardholders that both business and Gold Star members were automatically entitled to receive Total cardholders 36,800 47.600 42.600 34,000 44,600 40,200 31,600 42,000 34.400 16,200 21,200 10,500 14,700 n.a. n.a 90.300 86,700 81,300 76,400 1. By what % did Costco's revenues increase/decrease from 2014-2015 3.16% _(116199-112640)/112640 2015-2016 2.17 % _(118719-116199) /116199 2016-2017 8.68%. (129025-118719) /118719 2. What was Costco's Return on Sales (net profit margin) in 2015 2.05%. 2377 / 116199 2016 1.98%. 2350 / 118719 2017 2.10%. 2714 / 129025 3. What was Costco's operating profit margin in 2015 3.12% 3624 / 116199 2016 3.09% 3672 / 118719 2017 3.19% 4111 / 129025 4. What was Costco's Return on Equity in 2015 22.39% 2377 / 10617 2016 19.46% 2350 / 12079 2017 25.19% 2714 / 10778 5. What was Costco's Return on Assets in 2015 7.20% 2377 / 33017 2016 7.09% 2350 / 33163 2017 7.47% 2714 /36347 6. What was Costco's Current Ratio in 2015 1.01 % 16779 / 16538 2016 0.98% 15218 / 15575 2017 0.99 % 17317/17485 7. What was Costco's long-term debt-to-equity ratio in 2015 0.46%. 4852 / 10617 2016 0.34% 4061 12079 2017 0.61% 6573 / 10778 8. What are Costco's financial strengths? What are Costco's financial weaknesses