Graph.3x + 4y = -20
A. 
B. 
C. 
D. 
Answer: D
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Provide an appropriate response.Multiply: 128 × 403
A. 51,685 B. 51,574 C. 51,584 D. 51,283
Solve the problem.A merchant has coffee worth $30 a pound that she wishes to mix with 40 pounds of coffee worth $90 a pound to get a mixture that can be sold for $40 a pound. How many pounds of the $30 coffee should be used?
A. 120 lb B. 240 lb C. 100 lb D. 200 lb
Identify where f is increasing and where f is decreasing.f(x) = 4x - x2
A. increasing: (-?, 4]; decreasing [4, ?) B. increasing: [2, ?); decreasing (-?, 2] C. increasing: (-?, 2]; decreasing [2, ?) D. increasing: [4, ?); decreasing (-?, 4]
Provide an appropriate response.If a fraction simplifies to 1, what, if anything can you conclude about its numerator and denominator?
A. The numerator is 1, the denominator can be anything. B. The numerator and denominator are equal. C. The numerator can be anything, the denominator is 1. D. The numerator is smaller than the denominator.