Answer:
37.5 and 47.5 if your teacher days this is incorrect on the work then this is probably not the way your teacher taught it to you. if this answer is wrong one star this answer to warn other people that this answer is wrong.
Step-by-step explanation:
1) 85/2=42.5
2)42.5-5=37.5
3)42.5+5=47.5
