Translate the phrase to an algebraic expression. Use x to represent "a number."Divide a number by -48.
A. -48 ? x or -48x
B. x - (-48)
C. -48 ÷ x or 
D. x ÷ (-48) or 
Answer: D
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Find the indicated probability.The following table show the results of a clinical trial for an allergy drug. 
What is the probability that a randomly selected person either was given the allergy drug or did not improve? Round your answer to the nearest thousandth when necessary.
A. 0.11 B. 0.748 C. 0.858 D. 0.458
Solve the problem. If necessary, round your result to the nearest tenth unless instructed differently. The precise value of your approximation may depend on the conversion path that you choose.A road that is 14 miles long is represented on a map that shows a scale of 1 centimeter being equivalent to 40 kilometers. How many centimeters long does the road appear on the map? Round your result to the nearest tenth of a centimeter.
A. 0.6 cm B. 0.2 cm C. 0.9 cm D. 22.5 cm
Simplify.|-11|
A. 11 B. -11 C. 0 D. -22
Solve the system by the elimination method. x - 5y = -5-3x - 4y = 15
A. {(-5, 0)} B. {(5, -1)} C. ? D. {(-4, -5)}