Answer:
Step-by-step explanation:

Answer:
1. 322.01
Step-by-step explanation:
Formula: v=pi X r^2(h/3)
Answer:
The answer is no solution.
Step-by-step explanation: First, you would add + 12 to both sides of the equation so that you would have 5c + 21 = 5c. Then, you would subtract 5c from both sides of the equation. This would leave you with 21 = 0. Since this is not true, the equation would have no solution.