Write the inequality in set-builder notation, interval notation, and then graph the solution set.x ? -4
A. {x |x > -4} ; (-4, ? ); 
B. {x |x < -4} ; (-?, -4); 
C. {x |x ? -4} ; (-?, -4]; 
D. {x |x ? -4} ; [-4, ? ); 
Answer: D
Mathematics
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Solve the problem.A drink and a sandwich together cost $4.75. The sandwich costs $1.25 more than the drink. How much does the sandwich cost?
A. $0.50 B. $1.75 C. $3.00 D. $4.25
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Classify the system as either consistent or inconsistent.
A. Consistent B. Inconsistent
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Write a general formula to describe the variation.R varies directly with g and inversely with the square of h; R = 3 when g = 3 and h = 5.
A. R = 5
B. R = 5
C. R = 25gh2
D. R = 25
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Find the percent change if a quantity changes from P1 to P2. Round your answer to the nearest tenth if appropriate.P1 = 4.1, P2 = 2.6
A. 36.6 B. 57.7 C. -36.6 D. -57.7
Mathematics