Answer:
68
Step-by-step explanation:
12 + 5 = 17
17 x 4 = 68
Andrea's monthly allowance is $68.
It's been a while since I have done these kind of questions, but I would say a 180 transformation would be my best answer. Hope this helps a bit!
No error - A and B are completely right, and using the subtraction law D is right
The outlier is 68
The median is 102
First quartile: 87
Third Quartile: 115
The interquartile range is 87-115
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This problem is odd in that no information is given regarding the relationship, if any, between x and y, and (more importantly) x can't have both values -15 and 21. Please go back and ensure that you have copied down this problem precisely as it was given you.