There are 28 students in a mathematics class. if 1/4 of the students are called to the guidance office,1/3 of the remaining students are called to the nurse, and, finally, 1/2 of those left go to the library, how many students remain in the classroom

Hormones perform important functions within the reproductive system. during puberty, a number of changes occur in the body. which hormone is responsible for the development of these characteristics in the female? estrogen progestin progesterone testosterone