Ils and let y be the number of ques Or+y= 29.5x +2y = 100
Xx+y=100, 5x +2y = 29
5x+y= 29 2y +x=100
2x+y=100.5y +x=29

The authors choice of words and language

There are many roles that differ for american exchange students. these include assimilating to the culture of the country that one is in, being able to learn the language and communicate with others, as well as being able to understand what is happening in the courses that are taken.