Answer:
B
Step-by-step explanation:
Option 1,2,3 are true hope it helps if not im sorry
You dont have anything that we can answer to.
Answer:
4 1/2 hours.
Step-by-step explanation:
If 1/2 an hour only used up 1/9 of her battery, 9, 1/2 would give us 9/2, which if you simplified it gets you 8 1/2 hours. Hope this helps! Have a great day!
A solution can be found using substitution by substituting the ordered pair into both of the original equations.