I have some understanding of this but not quite sure how to do the problem. Direction & problem below.

Direction: Tell whether whole numbers, integers, or rational numbers are the most reasonable to describe each. Explain your answer.

Problem: body temperature; money owed; home runs

3 answers

Study these sites -- and then take a shot at your problem. We'll be glad to check your thinking.

http://www.mathsisfun.com/rational-numbers.html

http://www.mathsisfun.com/definitions/integer.html

http://www.mathsisfun.com/whole-numbers.html
So, I'm thinking based on the sites you given that...

body temperature = rational number
money owed = rational number
home runs = whole numbers

Is this correct?
I agree with you, David.