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
Answer: B
Mathematics
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For the given sets, construct a Venn diagram and place the elements in the proper region.Let U = {1, 2, 3, 4, 5, 6, 7, 8}A = {3, 6, 8}B = {4, 6}C = {1, 6, 7, 8}
A. 
B. 
C. 
D. 
Mathematics
Solve the system of equations by determinants. -4x + y - 2z - t = 10 -x - 4y + z + 3t = 16 -4x - 2y - 4z + t = 22 -2x - y - z + 3t = 15
A. x = -3, y = -2, z = -1, t = 2 B. x = -1, y = 0, z = 1, t = 4 C. Inconsistent D. x = -3, y = 2, z = 1, t = -2
Mathematics
Solve the problem.Since cos 
= 
and 
is in the interval [0, ?], cos-1 
=
A. 
B. 
C. - 
D. 4
Mathematics
Write the number in decimal notation.Seven hundred and six tenths
A. 70.6 B. 0.706 C. 700.6 D. 706.0
Mathematics