Answer:
$168
Step-by-step explanation:
1. x - 1/4x = 126
2. multiply each side by 4
3. 4x - x = 504
4. 3x = 504
5. divide each side by 3
6. x = 168
Rewrite the equation:
1/3 ⋅ ( πr2 ( 3r−h )) = V.
F=15