A rational number is one that can be written as an integer over an integer, with non-zero denominator. ie. all your fractions. An irrational number cannot be expressed as a ratio of integers and include numbers such as π,e,√2,ln2 , etc
The hundredths place is the second place after the decimal point. In this case, it is .
We can round it by looking at the next place to the right, which is a . is less than , so we can just cut off everything after the hundredths place. This leaves an answer of .