I guess this is the answer

then:

x=9
Answer:
Step-by-step explanation:
k=3 or k=−7 both choices are correct
Answer:
c
Step-by-step explanation:
this is because your adding 5 to f(x) which would be x not y (pretty sure) and g(x) is y. your not adding 5 to g(x) therefore not b. D and A would never be correct for this because that would be subtraction of 5
The answers are C and also D
The population would grow 1309 people (total 39,809)