Solve the system of equations by substitution.
A. x = 2, y = 8; (2, 8)
B. x = 2, y = 9; (2, 9)
C. x = 3, y = 8; (3, 8)
D. x = 3, y = 9; (3, 9)
Answer: C
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Combine like terms.m3 - 4m4 + 9m2 + m4 + 4m3
A. 3m4 - 5m3 - 9m2 B. -4m4 - 1m3 + 9m2 C. -3m4 + 5m3 + 9m2 D. -3m8 + 5m6 + 9m2
For the equation in the form ax2 + bx + c = 0, determine the number of real solutions by examining the graph of 
-2x2 + 12x - 24 = 0
A. 2 B. 0 C. Cannot be determined D. 1
Factor the trinomial completely. If the polynomial cannot be factored, write "prime."x3 - 4x2 - 5x
A. x(x - 5)(x - 1) B. x(x + 5)(x + 1) C. x(x - 5)(x + 1) D. x(x2 - 4x - 5)
Solve the problem.The logistic growth model 
represents the population of a bacterium in a culture tube after t hours. When will the amount of bacteria be 740?
A. 6.29 hours B. 12.28 hours C. 8.25 hours D. 2.26 hours