Respuesta :

Heather

Answer: y + x - 4

Step-by-step explanation:

   We will write an expression for this "number" by looking at the details given.

exceeds y { can become } y +

4 less than x { can become } x - 4

    Now we will put the parts together.

y + x - 4

       The number that answers this question is:

               y + x - 4

    Read more about writing an expression for this question here:

https://brainly.com/question/3507785
Y+4-x because to get a number exceeding this, you will have to add something, namely (x-4) so the answer is y+x-4.
(this requires that x>4, by the way)