Respuesta :

Answer:

Step-by-step explanation:

f(4)=-3(4+3)

do distributive i think, and if that doesnt work then add 4+3 first and then multiply by -3

Answer:

-21

Step-by-step explanation:

4 plus 3 equals 7. 7 times -3 is -21. I could be wrong but I believe it is the correct answer.