Draw the graph of the equation.y2 = -5x
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.The Paperback Trader is a book store that takes in used paperbacks for 20% of their cover price and sells them for 50% of their cover price. Pat brings in a stack of 16 paperback books to trade and gets $17.50 credit. Some of the books had a cover price of $7.97, the rest $3.97. She wants to get some Tom Clancy books having a cover price of $7.97. How many $7.97 books did she bring in and how many Clancy books can she get without paying any additional cash?
A. 6 $7.97 books, 2 Clancy books B. 6 $7.97 books, 5 Clancy books C. 6 $7.97 books, 4 Clancy books D. 10 $7.97 books, 2 Clancy books
Solve the problem.An influenza epidemic spreads at a rate proportional to the product of the number of people infected and the number not yet infected. Assume that 80 are infected at the beginning of the epidemic in a community of 10,000 people and 300 are infected 10 days later. Write an equation for the number of people infected, y, after t days.
A. y = 
B. y = 
C. y = 
D. y = 
Write in radical form. Assume all variables represent positive real numbers.m8/3
A. 
B. 
8
C. 
D. 
3
Factor completely, or state that the polynomial is prime.x4 + 3x3 + 216x + 648
A. prime B. (x + 3)(x - 6)(x2 + 6x + 36) C. (x + 3)(x + 6)(x2 - 6x + 36) D. (x + 3)(x3 + 216)