Which algebraic expression represents this phrase?
the product of 50 and the number of employees

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

Last year, a state university received 3,560 applications from boys. of those applications, 35 percent were from boys who lived in other states. part a)how many applications did the university receive from boys who lived in other states? part b)applications to the university from boys represented 40percent of all applications. how many applications did the university receive in all? i don't how to do part b so me and plz tell how you got your answer

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.