Answer:
To find the speed of sound you must use this equation: v= (331.5 +0.6 x T) m/s.
Explanation:
You have to convert 68 F to Celsius which is 20 degrees. Then write down the equation and the knowns and unknowns.
So the equation is this
v= (331.5 + 0.6 x 20) m/s
The answer is: 0.3435 km/s times 5 = 1.7175 (5km)
Make sure to show all these steps. I believe it is correct.