Answer:6.3 in.
Step-by-step explanation:
Given
Radius of sphere 
When ball is immersed in beaker, it causes the water to flowout of beaker which is collected in the conical vessel
Such that amount of water equivalent to sphere volume is collected in it.
volume of ball



Now volume of water collected is in shape of cone then volume of cone

and 
![\frac{256\pi }{3}=\frac{\pi }{3}(4)^2\times h\ quad [\text{h=height of cone formed}]](https://tex.z-dn.net/?f=%5Cfrac%7B256%5Cpi%20%7D%7B3%7D%3D%5Cfrac%7B%5Cpi%20%7D%7B3%7D%284%29%5E2%5Ctimes%20h%5C%20quad%20%5B%5Ctext%7Bh%3Dheight%20of%20cone%20formed%7D%5D)

the answer to your second question is
A.) 0.3125
B.) 0.9090909090909091
C.) 0.0019
Step-by-step explanation:
1. 3x+x-2x+8=3x+x
x-2x+8=x
x+8=x+2x
8=2x
8÷2=4
x=4
2. 2(2x+4)-2x=x+18
8+4x-2x=x+18
8+2x=x+18
2x=x+10
x=10
3. 2(x+3)+3x
2(5+3)+15
16+15
31
4. 3(2x)-3x+4=2x+5
6x-3x+4=2x+5
3x+4=2x+5
3x-2x+4=5
x=1
5. 3x+2x+x=x+6
6x=x+6
5x=6
x=6/5
6. 2(x+4)+x=16
2x+8+x=16
3x+8=16
3x=8
x=8/3
Hope I calculated it right you can check it in calculator
Answer:
A, C
Step-by-step explanation: