D the slopes are negative reciprocals
Answer:
Step-by-step explanation:
Batman
Answer:
90
Step-by-step explanation:
a triangle's angles all add up to 180. take 51 and 39 away from 180 and you get 90
I would start at making it more easy by asking my dad or mom for help
Answer:
8.50
Step-by-step explanation:
Find the unit rate.
51/6 = 8.5
