Solve.A ping-pong ball is dropped from a height of 9 ft and always rebounds 
of the distance fallen. Find the total sum of the rebound heights of the ball.
A. 4.5 ft
B. 6 ft
C. 3 ft
D. 13.5 ft
Answer: A
Mathematics
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A. x ? 16
B. x ? 16
C. x ? -16
D. x ? -16
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A. -9 B. 5 C. -15 D. -19
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y = 
A. (5, -2) B. (5, 2) C. (-5, 2) D. ( -5, -2)
Mathematics