# Answer to Question #15778 in Other Programming & Computer Science for Amber

Question #15778

I'm needing help with 3 homework questions. Could you please answer and explain. My answers would be 19. C, 20. C but I have no clue on 18.

18. If sales = 100, rate = 0.10, and expenses = 50 which of the following expressions is true?

a. sales >= expenses AND rate < 1

b. sales < 200 OR expenses < 100

c. expenses = rate OR sales = rate

d. two of the above

19. lf a is true, b is true, and c is false which of the following expressions is true?

a. a OR b AND c

b. a AND b AND c

c. a AND b OR c

d. two of the above

20. lf d is true, e is false, and f is false which of the following expressions is true?

a. e OR f AND d

b. f AND d OR e

c. d OR e AND f

d. two of the above

18. If sales = 100, rate = 0.10, and expenses = 50 which of the following expressions is true?

a. sales >= expenses AND rate < 1

b. sales < 200 OR expenses < 100

c. expenses = rate OR sales = rate

d. two of the above

19. lf a is true, b is true, and c is false which of the following expressions is true?

a. a OR b AND c

b. a AND b AND c

c. a AND b OR c

d. two of the above

20. lf d is true, e is false, and f is false which of the following expressions is true?

a. e OR f AND d

b. f AND d OR e

c. d OR e AND f

d. two of the above

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