Because it goes on forever. It has an infinite number of digits after the decimal point. It can't be expressed in the form p/q, where p=the numerator and q=the denominator. All rational numbers can be expressed in the form p/q.
Hope this helps you!
~Just an emotional teen who listens to her favorite song "Try Everything"
Divide the number of questions she got correct by the total number of questions on the test them multiply the decimal answer by 100 to get the percent.
