Please help! It's easy

Given:
Radius of the sphere = [tex]\frac{1}{4}[/tex]
To find:
Volume of the sphere
Solution:
Volume of the sphere formula:
[tex]$V=\frac{4}{3}\pi r^3[/tex]
Substitute the given values in the formula.
[tex]$V=\frac{4}{3} \times \pi \times\left(\frac{1}{4} \right)^3[/tex]
[tex]$V=\frac{4}{3} \times \pi \times\frac{1}{64}[/tex]
[tex]$V=\frac{1}{48} \pi[/tex] unit³
The volume of the sphere is [tex]\frac{1}{48} \pi\ \text{unit}^3[/tex].