Sets, Venn Diagrams, and Overlap Practice Test

At a conference of $200$ attendees, $110$ are in set $T$ (attendees who attended a technology session) and $95$ are in set $B$ (attendees who attended a business session). If $40$ attendees attended both types of sessions, what is the number of attendees that attended at least one of the two types of sessions?

In a class of $60$ students, $28$ are in set $S$ (students who play soccer) and $24$ are in set $B$ (students who play basketball). If $10$ students play both soccer and basketball, what is the number of students who play soccer but not basketball?