Decide whether -\sqrt{12} is rational or irrational.

Decide whether 0.1234 is rational or irrational.

Approximate the following irrational number to the nearest hundredth without using a calculator.
The square root of 32

Which statement is true? 

A terminating decimal is

...are the set of numbers that can be written as , where a and b are integers and, where a and b are integers and b ≠ 0are the set of numbers that can be written as , where a and b are integers and, where a and b are integers and b ≠ 0

Numbers that CANNOT be written as fractions in the form , where a and b are integers and b is not equal to 0