Answer:
24.85 mph
Step-by-step explanation:
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Is this the full question?
1) 3x=7-y
X=7-y/3
2) 4x=16-y
X=16-y/4
The height h = 12.87 cm.
Volume = pi r^2 h
647 = pi 4^2 h
h = 647 / 16pi
h = 12.87 cm.
