Answer:
in the intersection region of all the solution in the system.
So you you are trying to find the area of sphere so you would use this formula
A=4•3.14•r^2
And you already know that the radius is 6 so you would go ahead and plug in the numbers
A=4•3.14•4^2
4^2 is 16 so your final equation would be
A=4•3.14•16
And your answer is
=452.39
11:30-10:00=1 hr and 30 min
5:00-2:00=3 hrs