Question 511318
Express each sport as a fraction
{{{ 9/21 }}} of {{{ 21 }}} students play  soccer 
{{{ 1/21 }}} of {{{ 21 }}} students play baseball
etc.
There are {{{ 360 }}} degrees in a circle,  so find
what part of a circle each fraction represents
{{{ (9/21)*360 = 154.286 }}} degrees
{{{ (1/21)*360 = 17.143 }}} degrees
{{{ (5/21)*360 = 85.714 }}} degrees
etc.
If you add up all the slices of the pie,
you should get 360 degrees