Solve the problem. Round to the nearest tenth, if necessary.If an object is propelled upward from a height of 80 feet at an initial velocity of 80 feet per second, then its height after t seconds is given by the equation 
, where h is in feet. After how many seconds will the object reach a height of 180 feet?
A. 2.5 sec
B. 1.3 sec
C. 5 sec
D. 10 sec
Answer: A
Mathematics
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Write the interval in set-builder notation and graph the set on a number line.(-?, -3)
A. {x|x > -3}
B. {x|x ? -3}
C. {x|x ? -3}
D. {x|x < -3}
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Solve the problem.Stock in a company is selling for $6
per share. If someone purchases 
worth of stock in this company, how many shares did they get?
A. 96 shares B. 648 shares C. 5184 shares D. 366 shares
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The graph of ax2 + bx + c is given. Use this graph to solve ax2 + bx + c = 0, if possible.
A. -1, 8 B. 1, -8 C. 1, 8 D. -1
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Simplify.330 ÷ 11 - (4 + 2)
A. 26 B. 66 C. 24 D. 28
Mathematics