Lesson 5 theory study 2

Dear teacher

question 1 ( lesson section )

in Exercise 6.2, it is written (Notated below is our Eb Alto Saxophone song example from Music Theory Study 1). I see only one flat in the left margin. I deduce that this is for F and not for Eb. in the answer section, the first scale degree is F. I am a little confused about Eb in the description of the exercise.

Question 2 ( LOA section ) 

in exercise 6.3  I just want to know if I need to transpose the song to G major or Mixolydian? I think its Mixolydian

thank you