From the following consolidated income statement categorize all expenses into fixed, variable, and semi-variable and explain why.

For the periods ended September 30,

2017 2018 2017 2018 Third Quarter First Nine Months $ $ $ Revenues Automotive Ford Credit Mobility Total revenues (Note 3) (3 33,646 2,802 34,660 2,998 107,234 8,209 7 109,577 8,950 3 8 18 36,451 37,666 115,450 118,545 31,568 96,317 100,515 Costs and expenses Cost of sales Selling, administrative, and other expenses Ford Credit interest, operating, and other expenses , Total costs and expenses 30,275 2,919 2.259 2,882 2,352 8,439 6.680 8,407 7,052 115,974 35,453 36,802 111,436 284 328 840 890 Interest expense on Automotive debt Interest expense on Other debt 14 15 42 43 754 605 2,220 2,472 316 (32) 935 252 1,770 1,094 4,362 Other income/(loss), net (Note 4) Equity in net income of affiliated companies Income before income taxes Provision forl(Benefit from) income taxes Net income Less: Income (Loss) attributable to noncontrolling interests Net income attributable to Ford Motor Company 6,287 1,054 191 101 555 1,579 993 5,233 3,807 7 7 2 22 14 3,793 1,572 $ 991 $ 5,211 $ EARNINGS PER SHARE ATTRIBUTABLE TO FORD MOTOR COMPANY COMMON AND CLA! Basic income Diluted income 0.40 $ 0.25 $ 1.31 $ 0.95 0.95 0.39 0.25 1.30 Cash dividends declared 0.15 0.15 0.50 0.58