单项选择题



If x+y=a,y+z=b, andx+z=c, whatisthe average (arithmetic mean) of x, y, and z

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A
单项选择题
Approximately what percent of the proceeds that went to the states’ General fund would have to be given to the senior citizen programs so that the proceeds for the senior citizen programs and the Cities would be equal
A．0.9%
B．9%
C．31%
D．48%
E． 69%
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