Answer:

Step-by-step explanation:
From the question we are told that:
Rate 
Height 
Radius 
Generally the equation for Volume of Cone is mathematically given by


Differentiating



31/3: 2/3= 5
5X6=30
All you have to do is divide 31/3 by 2/3 and it equals 5 then 5X6=30
since it states that they hired 2 buses
and the equation is coming up with the total number of students ,
the letter b is for the number of students that rode each bus
Answer:
4.5
Step-by-step explanation:
The equation of an area of a circle is A=πr² where r is the radius.
The radius is also half the diameter. So the radius of the quarter is 1.2
A=π(1.2)²
A=π(1.44)
A=4.52389