Find the sum or difference.-(2x3 + x - 8) + (4x3 + 2x2) - (9x2 - 3x -1)
A. 2x3 + 7x2 + 4x - 9
B. 2x3 - 7x2 + 2x + 9
C. 1x3 - 5x2 - 2x + 9
D. 6x3 - 11x2 + 2x - 9
Answer: B
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Find the unknown value.153 is 45% of what number?
A. 0.29 B. 29 C. 340 D. 3400
Fill in each blank with the appropriate response.The graph of y = - 
+ 2 can be obtained from the graph of y = 
by reflecting across the __-axis, vertically shrinking by a factor of 
reflecting across the __-axis, and shifting vertically ___ units in the _______ direction.
A. y; 
; x; 2; upward
B. x; 2; y; 
; upward
C. x; 
; x; 2; upward
D. y; 
; x; 2; downward
Find the domain and the range of the function.
A. D: [-3, 3]; R: (-7, 2] B. D: [-3, 3]; R: [-7, 2] C. D: [-3, 3]; R: [-7, ?) D. D: [-7, 2]; R: [-3, 3]
Solve the problem.A flare fired from the bottom of a gorge is visible only when the flare is above the rim. If it is fired with an initial velocity of 192 ft/sec, and the gorge is 560 ft deep, during what interval can the flare be seen? 
A. 10 < t < 12 B. 5 < t < 7 C. 0 < t < 5 D. 15 < t < 17