Question

The difference between two positive numbers is 18.

Answer 1

Difference means to subtract so in order to get a difference that results to the answer of 18 you would have to subtract two positive numbers.An example would be
Solution:
99-81
Making your answer 18.
Therefore 99-81=18
Hope this Helps :)

Answer 2

9+9=18

Explanation:

as they are positive numbers so by adding it we get 18