Which algebraic expression represents “the difference of 54 and a number”?

x-54

Probably talking about Edgenuity and if thats the case then the choices would be 54-n, 54/n, 54n, and 54+n i think 54-n

To represent "the difference of 54 and a number" in algebraic expression, we can subtract the number from 54. Let's call the number 'x'. Therefore, the algebraic expression representing this situation is 54 - x.

go with that, although x-54 does not acknowledge that x could be less than 54.

In that case the difference would be a negative number, that is why I placed absolute value signs around the x-54

I don't know what your choices are, but if the number is x, I would expect to see

|x-54|