Respuesta :

Spykids
a+4 for the first one and 5*a or 5a for the second.

Hope this helps!
tramserran

Answer:   x + 4

                5x

Step-by-step explanation:

The first one is "x + 4" because you are adding 4 to the 1st number

The second one is "5x" because you are multiplying 5 to the 2nd number.