C , it’s become more adapted to and more modern
Answer:
A = 177.46
Step-by-step explanation:

A = 6*6+6root((6/2)^2+11.4^2)+6root((6/2)^2+11.4^2)
A = 177.46
Answer:
speeds above 343 m/s
Step-by-step explanation:
the faster you go the faster the supersonic