C.2144 Keep in mind that the volume of a sphere is = 4/3 x pi(3.14) x r^3. If you insert that radius (8) for r, you end up having 2144.66.... rounding it up will give us option 3, 2144.
6 is easy 7. never divide by a fraction, flip ot upside down and multiply, so multiply by 5 on both sides 8. subtract 3.45 on both sides 9. the answer is just 1
