Answer:
The answer is B
Step-by-step explanation:
You have to seperate the inequalities into 2 :


Then you have to solve it :







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