Answer:NO, NO, YES
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
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>
<em></em>
Answer:
x=
1
3
y+
17
3
Step-by-step explanation:
This is all i can get so far, <em>if can improve opon this let me know</em>