Evaluate each expression if a=11, b=8, and c= -6.

17. a - 17
-28

18. 10 - b
2

19. -30 - c
-24

20. b - a
19

22. c - b
-14

23. b - c + a
3

24. b - c - a
25

25. c - a - b
-3

28. c - a + b
-13

17. a -17 = 11- 17 ≠ -28

18. Right

19. Right

20. b - a = 8 - 11 ≠ 19

22. Right

23. Right

24. Right

25. c - a -b = -6 -11 -8 ≠ -3

28. c - a + b = -6 -11 + 8 ≠ -13

To evaluate each expression when a=11, b=8, and c=-6, simply substitute the given values into the expression and perform the necessary mathematical operations. Here's how to get the answer to each expression:

17. a - 17

Substitute a = 11:
11 - 17 = -6

18. 10 - b

Substitute b = 8:
10 - 8 = 2

19. -30 - c

Substitute c = -6:
-30 - (-6) = -30 + 6 = -24

20. b - a

Substitute a = 11 and b = 8:
8 - 11 = -3

22. c - b

Substitute b = 8 and c = -6:
-6 - 8 = -14

23. b - c + a

Substitute a = 11, b = 8, and c = -6:
8 - (-6) + 11 = 8 + 6 + 11 = 3

24. b - c - a

Substitute a = 11, b = 8, and c = -6:
8 - (-6) - 11 = 8 + 6 - 11 = 3

25. c - a - b

Substitute a = 11, b = 8, and c = -6:
-6 - 11 - 8 = -6 - 19 = -25

28. c - a + b

Substitute a = 11, b = 8, and c = -6:
-6 - 11 + 8 = -6 - 3 = -9