Answer:
Image attached since I can't type it out
(Btw forgive me for my horrible handwriting D: )
Reasoning:
#4 is a segment which is why it's written like that in the image.
#5 is an angle which is why there is the angle symbol before the PQR
#6 is a line which is why there is a line on top of BY
#7 is an angle which is why there is an angle symbol before LMN
Hope this helped! <3
