Answer: 12
Step-by-step explanation:
Y =

This is because the total cost is 10x + 480 and then that needs to be divided by the amount of people.
Using the volume of the spherical balloon, it is found that it will take 24 hours for the balloon to become completely empty.
<h3>What is the volume of a sphere?</h3>
The volume of a sphere of radius r is given by:

Aspherical balloon has a radius of 6 feet, hence the volume is:

It has already lost 20% of it's air, and air is leaking out of the balloon at a rate of 30 cubic feet per minute, hence the volume after t minutes is given by:


It will be completely empty when:





Rounding, it will take 24 hours for the balloon to become completely empty.
More can be learned about the volume of a sphere at brainly.com/question/25608353
Answer: 14 in.
Step-by-step explanation:
https://studyandanswers.com/mathematics/question15147255?#