Respuesta :

Answer:

15k + 18f

Step-by-step explanation:

combine the like terms

You basically have to add the like terms together.
7k+8k & 3f+15f
=15k. = 18f
Now your just left with 15k+18f because you can’t add them because they don’t have like terms
So they answer is 15k+18f
Hope this helped!