It's 8n meaning 8 times n (8*n) so for example for 5 nights she would sleep : 8*5 = 40 hours in total.
Answer:
-4
Step-by-step explanation:

I believe you go to the spots on the graph and then just found up from there, and do that with every point
2/3=0.666=66.6% of homework
4/7=0.57=57% of homework
Therefore Tina completed more homework
Hope this helps!
Answer: y=2-2x
Step-by-step explanation: