Marco teaches music history to all of the banjo, bass, and violin students. all his classes have the same number of students. what is the greatest number of students he can have in each class? (banjo24) students,(bass 27) students, (violin 21) students

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?

Assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.

Bc and bd are opposite rays. all of the following are true except a)a,b,c,d are collinear b)a,b,c,d are coplanar c)bc=bd d)b is between c and d