I'm not asking a question, instead I'm answering two different ones, the first being:
A large boulder falls from a cliff located 1,044 meters away from a herd of elephants. The temperature of the air is 29°C. How long after the boulder crashes will the elephants hear the sound?
3.20 sec
3.00 sec
0.30 sec
30 sec
Ok, so first we need to find how fast sound travels in 29 degrees celsius
To find this we use the formula:
VT=331 m/s+0.6 m/s (29 degrees celsius)= 348.4 m/s
Now that we know the speed we can finish the problem
Since velocity=distance/time, time=distance/velocity
1,044 meters/348.4 m/s= 2.99 seconds, or approximately 3 seconds.

Next question:
A large boulder falls from a cliff located 1,044 kilometers away from a herd of elephants. The temperature of the air is 29°C. At what rate does the sound of the crashing boulder travel toward the elephants?
331 m/s
334 m/s
36 m/s
348 m/s

We answered this in the first part of the other question;
VT= 331 m/s +0.6 m/s (29 degrees celsius) = 348.4 m/s which is approximately 348 m/s

I got both of these answers right, let me know if you need further clarification, hope this helps whoever need it! You got this!! : )