Answer: 5/12
Step-by-step explanation: Find the least common denominator of 4 and 3 (12), and change 2/3 to 8/12 and 1/4 to 3/12. Subtract the fractions and you will get an answer of 5/12.
Hope this helps!
Your answer is 9.042÷2.1=4.305
Step-by-step explanation:

Answer:
40/3 pi
Step-by-step explanation:
Volume of a cone = 1/3 *pi*h*r^2 , where h = height, and r = radius.
diameter = 2 radius, so radius = 8/2 = 4
The height = 10, so plug these values into the equation:
1/3 * pi * 10 * 4 =
40/3 pi