Answer:
![r=\sqrt[3]{\frac{3V}{4\pi}}](https://tex.z-dn.net/?f=r%3D%5Csqrt%5B3%5D%7B%5Cfrac%7B3V%7D%7B4%5Cpi%7D%7D)
Step-by-step explanation:

We need to isolate 'r'
To isolate 'r' , first multiply by 3 on both sides
divide by 4pi on both sides

Take cube root on both sides
![\sqrt[3]{\frac{3V}{4\pi}}= r](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B%5Cfrac%7B3V%7D%7B4%5Cpi%7D%7D%3D%20r)
Answer:
392.1
Step-by-step explanation: just divide and round
Answer:
7 & 8
Step-by-step explanation:
= 7.7459666924148337703585307995648
Therefore, it lies between the whole numbers 7 & 8.
Hope this helps :)
1.8903
because if you do the math its easy
You would multiply 13/52 by 13/51 which you should receive an answer of 13/204