24% of students in a class are girls. If there are less than 30 students in this class, how many students are there? How many girls are there?

Can someone explain the elimination method to me for this problem?

Write each of the following numerals in base 10. for base twelve, t and e represent the face values ten and eleven, respectively. 114 base 5 89t base 12

If we pull out the middle player of team a and the fourth player of the team b. what will be the force of team a and team b? what is their sum of forces