Answer:
12π
Step-by-step explanation:
Volume of the cone is πr^2 * h / 3
r = 3
h = 4
9π * 4 / 3 = 12π
There are many possibilities
11 dimes and 1 quarter
6 dimes and 3 quarters
1 dime and 6 quarters
Much more...
Answer:
180...
Step-by-step explanation:
15 x 12 = 180
Since a fraction is a form of division, you do 21/2=10 and 1/2.