Perform the modular arithmetic operation.124 + 125 (mod 12)
A. 8
B. 20
C. 9
D. 13
Answer: C
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Solve the equation 
for x.
?
A. There is no solution.
B. 
C. ?
D. ?
Let 
. If y is multiplied by 4, how is x affected? Round your answer to two decimal places if necessary.
?
A. 1.59 is added to x B. x is multiplied by 64 C. 64 is added to x D. x is multiplied by 1.59
Three players (one divider and two choosers) are going to divide a cake fairly using the lone divider method. The divider cuts the cake into three slices (s1, s2, and s3).Suppose the choosers value the slices as follows:
Which of the following is not a fair division of the cake?
A. Chooser 1 gets s1; Chooser 2 gets s2; Divider gets s3. B. Chooser 1 gets s2; Chooser 2 gets s1; Divider gets s3. C. Chooser 1 gets s1; Chooser 2 gets s3; Divider gets s2. D. Chooser 1 gets s2; Chooser 2 gets s3; Divider gets s1. E. none of these
Multiply.9x3y(xy2 + 5)
A. 9x + 5x3y B. 45x3y C. x4y3 + 45x3y D. 9x4y3 + 45x3y