Tell whether the statement is true or false.Let A = {5, 6, 7, 8, 9, 10}, B = {7, 9, 11}, C = {5, 6, 8, 10}, D = {5, 10}, and 
D ? C
A. True
B. False
Answer: B
Mathematics
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Find the marked price and sales tax. Round to the nearest cent.Total Sale: $52.72Sales Tax Rate: 7%
A. $48.81; $3.91 B. $49.27; $3.45 C. $31.01; $21.71 D. $49.74; $2.98
Mathematics
Solve the system by the substitution method.x2 + y2 = 85x + y = 13
A. {(7, 6), (6, 7)} B. {(7, -6), (6, -7)} C. {(-7, -6), (-6, -7)} D. {(-7, 6), (-6, 7)}
Mathematics
Decide if the given number is a solution to the given equation.5z2 - 9 = 378.8; 8.6
A. No B. Yes
Mathematics
Find the domain of the rational function.f(x) = 
A. {x|x ? -4, 2} B. {x|x ? -4, -2, 2} C. {x|x ? -2, 4} D. all real numbers
Mathematics