Answer:
<em>343 metres per second
</em>
<em>In dry air at 20 °C (68 °F), the speed of sound is 343 metres per second (about 767 mph, 1234 km/h or 1,125 ft/s).</em>
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63 dollars 3 hours
21 dollars 1 hour
Answer:
nine-hundred thousand plus fifty thousand plus nine thousand plus six-hundred plus twenty plus seven
Step-by-step explanation: answer above
The answer would be 1 were to estimate