10% of the 70 students in the school orchestra are performing a solo at the spring concert. How many students are performing a solo?

There are 54 students in the orchestra and twice that number in the band. There are 10 boys and 37 girls in the choir. If each student only participates in one group, how many students total are there in the orchestra, the band, and the choir?

There are 140 students in the seventh grade, and 5% are in the Environmental Club. How many students are in the Environmental Club?

In a school, 20% of the students are girls, and the rest are boys. If there are 750 boys, how many students are in the school in total?

There are 200 students taking part in after-school clubs and activities. Eighty-three of the students signed up for track. A total of 59 students signed up for the drama club and 24 of them also signed up for track. How many students are not on the track team or in the drama club?

In a class, 55% of the students are boys. 60% of the boys and 80% of the girls love singing. What is the percentage of students who love singing?%