Answer:
I think its A but im not sure
Step-by-step explanation:
Answer:
17
Step-by-step explanation:
I would just solve them individually for 3 and then add them together. f(x)=6(3)+3 = 21 and g(x)= 3-7= -4
(f+g)(3) = 21-4= 17
Michael will end up on the 30th floor.