Factor by grouping.20x2 - 15xy + 8xy - 6y2
A. (5x + 2y)(4x - 3y)
B. (20x + 2y)(x - 3y)
C. (5x - 2y)(4x - 3y)
D. (5x + 2)(4x - 3)
Answer: A
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Write the percent as a fraction in the lowest terms.23
%
A. 
B. 
C. 
D. 
Solve the problem.For what numbers x, 0 ? x ? 2?, does cos x = 0?
A. 0, 1, 2
B. 
, 
C. 0, ?, 2?
D. 0, 1
Solve.A common antibiotic is prescribed in a liquid suspension composed of part antibiotic and part water. In one formulation of the antibiotic suspension, there are 350 mg of the antibiotic in 
of the liquid suspension. A physician prescribes 200 mg per day. How much of the antibiotic liquid suspension should be administered to achieve the recommended dosage?
A. 196 cc B. 12.25 cc C. 1.96 cc D. 4 cc
Solve the quadratic inequality. Graph the solution.v2 + 4v - 21 ? 0
A. [3, ?)
B. (-?, -7]
C. [-7, 3]
D. (-?, -7] ? [3, ?)