Question

Which expression represents the difference between 25 and an unknown number? A. 25 - n
B. 25 + n
C. 25/n
D. 25n

Answer 1

Difference means subtraction so to find the difference of a known and unknown number, you would subtract the unknown from the known or vice versa.
So the answer is A. 25 - n.

Answer 2

the anwser to your question is 
A. 25 - n because you hsft to subtract the unknown number towards your total of 25 then you get the number of the difference 

Hope this helps thanks for asking!!