At a school, 40% of the sixth-grade students said that hip-hop is their favorite kind of music. If 100 students prefer hip-hop music to any other kind of music, how many sixth-grade students are at the school in total?

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?

Find the actual dimensions of the box. the side length are in meters and integers. the surface area of the box is 104 m2 and volume of the box is 60 m3.

Using pert, adam munson was able to determine that the expected project completion time for the construction of a pleasure yacht is 21 months, and the project variance is 4. a) what is the probability that the project will be completed in 17 months? b) what is the probability that the project will be completed in 20 months? c) what is the probability that the project will be completed in 23 months? d) what is the probability that the project will be completed in 25 months? e) what is the due date that yields a 95% chance of completion?