Which of the following is an example of a irrational number between 6 and 7?

A. 2 pi

B. 6.875

C. 6.12345 ...

D. Both a and c

E. All of the above

D. Both a and c

Step-by-step explanation:

Irrational numbers can not written in a fraction form

For A, since pi is a irrational number, 2 time of it still make it irrational

For B, 6.875 could be written in fraction as 6785/1000, a rational number

For C, the number can not expressed in a fraction form because it goes on indefinite, an irrational number.