Write the phrase as an expression. then evaluate when x=5 and y=20. the sum of a number x and 4 all divided by 3

The expression is as follows:

(x + 4) / 3 ← Three
    ↑     ↑  
    |  Divided by
The sum of x and 4 all
I think you meant to say to evalutewhen x = 5 and when x = 20.

Now we plug in the numbers and solve:

(x + 4) / 3

(5 + 4) / 3

9/3

3

(20 + 4) / 3

24/3

8