Every input(x) has only one output(y)
Emily and Marie can’t have the same birthday in this so it’s not a function
here is the answer I just took a picture because I already answered this for someone eles
14/18-9/18=5/18 it can't be simplified anymore
3:15 because its till 3 o'clock and in each 1 theres 5 inside so 3x 5 = 15.
Thats how I got the answer 3:15 o'clock.
Hoped it help! :D