Answer:
331.3
Step-by-step explanation:
Result (w/surrounding text)
The World Book Encyclopedia. Vol 18. Chicago: World Book, 1995 . "Sound travels 1,268 feet (386 meters) per second through air at 212 °F (100 °C)."
Speed of Sound. Hyperphysics. Carl R. Nave. Georgia State University. "Air, Temperature 0 °C, 331.5 m/s"