## Thinking Mathematically (6th Edition)

a.$II$ region b.$II$ region c.$A\cap B = B\cap A$
a. $II$ region - the one where the circle for $A$ intersects with the circle for $B$. b. $II$ region - the one where the circle for $B$ intersects with the circle for $A$. c. We can conclude that $A\cap B = B\cap A$.