Answer:
none.
Step-by-step explanation:
An Irrational Number is a real number that cannot be written as a simple fraction.
So, checking one by one
a and c) 15 can 25 are not an irrational number because they are an integer and all integers are rational numbers. and can be written as 15/1 or 25/1
b )1.15 is not an irrational number its fraction form is 23/20
d) Repeating decimals are considered rational numbers because they can be represented as a ratio of two integers. If a number is terminating or repeating, it must be rational.
