Question 366649
Type....Freq...Degrees	
O+.....  6.......120
A+.....  6.......120
B+.....  2........40
O-.....  1........20
A-.....  1........20
AB+....  1........20
B-.....  1........20
-----------------------add
.................360
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There are 360 degrees in a circle.
6+6+2+1+1+1+1=18
360/18=20 degrees
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Ed