To estimate \( 3 \times \pi \), we can use the approximate value of \( \pi \) which is \( 3.14 \).
Calculating:
\[ 3 \times \pi \approx 3 \times 3.14 = 9.42 \]
Now, let's convert this into a fraction and look at the provided responses.
Here are the approximate fractions for the options given:
- \( 9 \frac{1}{7} \) is approximately \( 9.14 \).
- \( 9 \frac{3}{7} \) is approximately \( 9.43 \).
- \( 6 \frac{3}{7} \) is approximately \( 6.43 \).
- \( 6 \) is just \( 6 \).
From the estimates, \( 9 \frac{3}{7} \) (approximately \( 9.43 \)) is closest to \( 3 \times \pi \) which we calculated to be about \( 9.42 \).
Thus, the best estimate for \( 3 \) times \( \pi \) is:
9 \( \frac{3}{7} \).