Evaluate the sum. Round to the nearest hundredth, if necessary.
A. 34
B. 22
C. 30
D. 39
Answer: A
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Solve the special system by substitution. If the system is dependent, write the solution using set-builder notation with the common line expressed in slope-intercept form.
A. ?
B. 
C. 
D. (-12, 0)
Graph the inequality.x - y < -3
A. 
B. 
C. 
D. 
Solve the problem.An electronics store stocks VCRs, stereo systems, and television sets. They have limited storage space and can stock a total of at most 150 of these three machines. They know from past experience that they should stock twice as many VCRs as stereo systems and at least 30 television sets. If each VCR sells for $450, each stereo system sells for $2000, and each television set sells for $650, how many of each should be stocked and sold for maximum revenues?
A. 72 VCRs, 36 stereo systems, 42 television sets B. 60 VCRs, 60 stereo systems, 30 television sets C. 56 VCRs, 28 stereo systems, 66 television sets D. 80 VCRs, 40 stereo systems, 30 television sets
Factor completely.3x2 - 3x - 18
A. 3(x + 2)(x - 3) B. prime C. 3(x - 2)(x + 3) D. (3x + 6)(x - 3)