To find an expression that represents the value of \(\pi\), we can use the relationship between the circumference \(C\) and the diameter \(d\) of a circle, which is given by the formula:
\[ C = \pi d \]
In this case, the diameter \(d\) of the circle is 7 centimeters, and the circumference \(C\) is approximately 21.98 centimeters. We can rearrange the formula to solve for \(\pi\):
\[ \pi = \frac{C}{d} \]
Substituting the given values of \(C\) and \(d\):
\[ \pi \approx \frac{21.98}{7} \]
Now, we can compute this expression:
\[ \pi \approx 3.14 \]
So, the expression that best represents the value of \(\pi\) in this context is:
\[ \frac{21.98}{7} \]