Respuesta :

Answer:

A 3^x+15x-3

Step-by-step explanation:

f(x)=3^x+10x and g(x)=5x-3

(f+g)(x) = 3^x+10x +5x-3

 Combine like terms

           = 3^x +15x -3

Answer:

A 3^x+15x-3

Step-by-step explanation:

i did it