In an auditorium, 1/6 of the students are 5th graders, 1/3 are 4th graders, and 1/4 of the remaining students are 2nd graders. if there are 96 students in the auditorium, how many 2nd graders are there?

Determine the mean and variance of the random variable with the following probability mass function. f(x)=( 729divided by 91) (1 divided by 9) superscript x baseline comma x equals 1,2,3 round your answers to three decimal places (e.g. 98.765).

What are the soultion(s) to the quadratic equation 40- x^2=0

What is the binomial expansion of (2x-3)^5