Answer:
8,400
Step-by-step explanation:

14: increase
15: decrease
Hope this helps!
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!
Answer:
V = 942.48cm³
Step-by-step explanation:
The volume of a right circular cylinder with a radius of 5 cm and a height of 12 cm is 942.48.
Formula: V=πr2h
V=πr2h=π·52·12≈942.4778cm³