Solve.The price of a stock rose 9 points, fell 13 points, and again fell 7 points. What was the stock's total change?
A. -29 points
B. 29 points
C. 3 points
D. -11 points
Answer: D
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Solve.When a single card is drawn from an ordinary 52-card deck, find the probability of getting a red card.
A. 2
B. 
C. 
D. 
Solve the problem.Suppose that one box contains n balls, of which 6 are red. A second box contains 
balls, of which n are red. If you select a ball from each box, the probability of not drawing a red ball from the first box and a red ball from the second box is 
Simplify this expression and use it to find the probability when 
A. 
B. 
C. 
D. 
Identify and graph the conic section. Label the center and/or vertex as appropriate.y = -4(x - 5)2 + 1
A. parabola; vertex (-5, 1)
B. parabola; vertex (5, 1)
C. parabola; vertex (5, 1)
D. parabola; vertex (5, 1)
Solve the problem.The mass of an electron is approximately 9.11 × 10-28 grams. Find the mass of 743,000,000 electrons.
A. 6.76873 × 10-17 grams B. 6.76873 × 10-19 grams C. 6.76873 × 10-18 grams D. 6.76873 × 10-20 grams