Numbers and Expressions 25 Questions

I did most of these questions, but I want to make sure that their correct. Heres the first 5 questions:

1.            Which of the numbers below belong to both the set of integers and rational numbers?

1.      -2

2.      3/5

3.      4/2

1 only

2 and 3 only

1 and 3 only

1, 2, and 3 *I chose this option*

2.            Given the sets P = {-4, -1, 0, 3, 5, 7} and Q = {0, 1, 2, 3, 4, 5}. The set P∩Q is given by:

A.     {0, 3, 5}

B.     {-4, -1, 0, 1, 3, 4, 5, 7} *I picked this option*

C.     {-4, -1, 0, 0, 1, 2, 3, 3, 4, 5, 5, 7}

D.     Ø

 

3.            Reduce the fraction 28/132 to its simplest form.

A.     14/66

B.     7/33 *I picked this option*

C.     28/132

D.     4/132

4.            Convert 7 2/9 to an improper fraction.

A.     65/9 *I picked this option*

B.     13/9

C.     74/9

D.     9/65

 

5.            Which number can be classified as a non-terminating, non-repeating decimal number?

A.     0.65728

B.     0.23845

C.     0.53917… *I picked this option*

D.     0.11