Answer
a) 25, 7, 13, \sqrt 9
b) 25, 7, 13, \sqrt 9
c) 25, -17, \sqrt 9, 7, 13
d) 25, -17, -12/5, \sqrt 9, 3.12, 7, -11.1, 13
e) 1/2 \pi
Work Step by Step
a) Natural numbers include all counting numbers from 1 onward.
b) Whole numbers include all counting numbers from 0 onward.
c) Integers are whole numbers that can be positive, negative or 0.
d) A rational number can be written in the form p/q, where q is not 0.
e) An irrational number is one that cannot be expressed as a fraction.
