Solve the problem.The graph below shows the height, in feet, of a ball thrown straight up with an initial speed of 96 feet per second from an initial height of 112 feet after t seconds. 
At what time does the ball hit the ground? How do you know?
A. 1 second; 200 feet
B. 7 seconds; height = 0 feet
C. 6 seconds; 125 feet
D. 5 seconds; 200 feet
Answer: B
Mathematics
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B. 
?
C. 18?
D. 
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A. 1, 2, 3, 6, 7, 14, 28, 42 B. 7, 6, 14, 42 C. 1, 2, 3, 6, 7, 14, 21, 42 D. 1, 7, 6, 42
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Simplify. Be sure to rationalize the denominator. Assume that all variables represent positive real numbers.
A. 3
- 5
B. 
C. 3
+ 15
D. 3
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Find the product.-4x4(-8x - 7)
A. 60x4 B. 32x + 28 C. 32x5 - 7 D. 32x5 + 28x4
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