Answer:
f(x)=g(x) is the only answer
Step-by-step explanation:
A.)Rachel should have 6 second class tramps. Because if you do the equation 6+6+6 you get 18 (the number of first class stamps she has)
2.)Add 6 to 18 to get your answer :)
Answer should be 22= 11x2 11= 11x1, something like that :)