Yeah I’m pretty sure it is a rational number
Answer:
The height of the cone is 
Step-by-step explanation:
we know that
The volume of a cone is equal to

In this problem we have
----> the radius is half the diameter

assume 
substitute the values and solve for h


Answer:
Multiplication
Step-by-step explanation:
x/5 = 3
Multiply by 5
x = 15