A stack contains 380 worth of paper money consisting of twenty-dollar bills and fifty-dollar bills. There are 10 bills altogether. How many twenty-dollar bills and how many fifty-dollar bills are in the stack?

The number of 8th graders who responded to a poll of 6th grade and 8 th graders was one fourtg of the number of 6th graders whi responded if a total of 100 students responddd to the poll how many of the students responded were 6 th graders