Multiply.(5x + 4)(x + 7)
A. 5x2 + 39x + 39
B. 5x2 + 37x + 28
C. 5x2 + 28x + 39
D. 5x2 + 39x + 28
Answer: D
Mathematics
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A. 4.4 B. 5.1 C. 7.4 D. 105.1
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Convert the units.305 mL = 
L
A. 3.05 L B. 30,500 L C. 0.305 L D. 305,000 L
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Express in terms of i.- 
A. 2i
B. 2
C. -2i
D. -2
Mathematics
Find the root. Assume that variables represent any real number.- 
A. 
B. -|x|
C. x
D. -x
Mathematics