Simplify the expression by using the order of operations.12 ? 
- 15 ? 
A. 927
B. 837
C. 153
D. 63
Answer: D
Mathematics
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Identify the correspondence.The two triangles shown below are congruent. ?ABC ? 
A. ?XWZ B. ?XZW C. ?WZX D. ?WXZ
Mathematics
Solve the equation and check your solution.
+ 
= 
A. 8
B. - 
C. -8
D. -4
Mathematics
Construct the specified histogram.The frequency table below shows the number of days off in a given year for 30 police detectives. 
Construct a histogram. 
What will be an ideal response?
Mathematics
Find the dot product v ? w.v = -4i,
w = j
A. 0
B. 
C. -3
D. -4
Mathematics