Idont know what my teacher wants to know, he doesn't really stay after to us so in advance.

Just ask to stay after class and chat because you don't understand. & if he says he can't, then find time in between class, or another teacher who can help you. ☺

Cultural convergence is the theory that two cultures will be more and more like each other a very notable example of this is around the u.s.-mexico border, where 

Place the point of the compass on point b and draw an arc that intersects  be¯¯¯¯¯  , using    ab    as the width for the opening of the compass.  hope it