Answer:
huh?, give the full answer please
Step-by-step explanation:
Number 2 would be b. 7/12= 0.583 repeating
Answer:

Step-by-step explanation:
<u>Formula for circumference of a circle is</u>:
Circumference = 
<em>Given circumference of the ring is
</em>
<em>Now solving for the radius gives us:</em>

We know that area of a circle is
, substituting the value of r we found, we get the area as:
area (A) = 
Hence the Area (A), in terms of
is
V=4/3πr^3, so substitute what you know. Input the volume so you only have to solve one variable, the r, radius.