Answer:
90
Step-by-step explanation: 9 + 6 = 15
So, then you would multiply 15 x 6 which equals 90
Answer:
Volume of the cone = 
Step-by-step explanation:
Volume of a right circular cone:

For, h=3.9 feet
r= 14.7 feet
As, 
Volume :

Volume of the cone is 
Answer:
5/4
Step-by-step explanation:
The constant of proportionality is the coefficient of x: 5/4.