1a.
**1** answ

1b.
**3** answ

0,1,2,5

1c.
**3** answ

1d.
**2** answ

2a.
**3** answ

5,12

2b.
**3** answ

0,5,12

2c.
**3** answ

2d.
**2** answ

3a.
**3** answ

1

3b.
**3** answ

1

3c.
**3** answ

-13,-6,1

3d.
**3** answ

4a.
**4** answ

4

4b.
**3** answ

4

4c.
**2** answ

4d.
**2** answ

5a.
**3** answ

5b.
**2** answ

5c.
**3** answ

5d.
**2** answ

6a.
**2** answ

6b.
**2** answ

6c.
**2** answ

6d.
**2** answ

7.
**2** answ

8.
**3** answ

0.333

9.
**3** answ

10.
**3** answ

0.625

11.
**3** answ

12.
**2** answ

13.
**2** answ

14.
**2** answ

15.
**3** answ

16.
**3** answ

17.
**2** answ

18.
**2** answ

19a.
**2** answ

The set of all real numbers less than or equal to 5.

19b.
**2** answ

See diagram

19c.
**2** answ

Unbounded

20a.
**2** answ

The set of all real numbers greater than or equal to -2.

20b.
**2** answ

See diagram

20c.
**2** answ

Unbounded

21a.
**2** answ

The set of all negative real numbers.

21b.
**2** answ

See diagram

21c.
**2** answ

Unbounded

22a.
**2** answ

The set of all real numbers greater than 3.

22b.
**2** answ

See diagram

22c.
**2** answ

Unbounded

23a.
**2** answ

The set of all real numbers greater than or equal to 4.

23b.
**2** answ

See diagram

23c.
**2** answ

Unbounded

24a.
**2** answ

The set of all real numbers less than 2.

24b.
**2** answ

See diagram

24c.
**2** answ

Unbounded

25a.
**2** answ

The set of all real numbers between -2 and 2, not including -2 and 2.

25b.
**2** answ

See diagram

25c.
**2** answ

Bounded

26a.
**2** answ

The set of all real numbers between 0 and 5, including 0 and 5.

26b.
**2** answ

See diagram

26c.
**2** answ

Bounded

27a.
**2** answ

The set of all real numbers between -1 and 0, including -1 and excluding 0.

27b.
**2** answ

See diagram

27c.
**2** answ

Bounded

28a.
**2** answ

The set of all real numbers between 0 and 6, including 6 and excluding 0.

28b.
**2** answ

See diagram

28c.
**2** answ

Bounded

29.
**1** answ

30.
**1** answ

31.
**2** answ

32.
**2** answ

33.
**2** answ

34.
**2** answ

35.
**2** answ

36.
**2** answ

37.
**1** answ

This interval consists of all real numbers greater than or equal to 0 and less than 8

38.
**1** answ

This interval consists of all real numbers greater than or equal to -5 and less than or equal to 7

39.
**1** answ

This interval consists of all real numbers greater than -6

40.
**1** answ

This interval consists of all real numbers less than or equal to 4

57.
**1** answ

58.
**1** answ

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