195 College freshmen were interviewed. 110 were registered for an Advanced Math class
122 were registered for an English class
108 were registered for a Sport Activity class
53 were registered for both Math and English
22 were registered for both Sport and English but not Math
34 were registered for Math, Sport, and English.

a)How many signed up only for a math class?
b) How many signed up for neither Math nor English and Sport?
c) The cost for only one class per month is $185, for two - $300 and for three -$400.
What is the total fee for all the students enrolled in classes?