We will use the followin property of logarithms:

So, we have

If you multiply both sides by 4, you get

Answer:
c. 69
b. 7
Step-by-step explanation:
As the word suggests, a quarter-sphere is a quarter of a sphere, and thus the volume of a quarter-sphere is a quarter of the volume of the sphere.
The volume of a sphere is computed as

So, the volume of a quarter-sphere is

hi i just need some points rq tyStep-by-step explanation: