Marty teaches music in his community. he teaches three classes a day, and each class has fewer than 8 students. if marty teaches x students a day, which is the simplest inequality that represents this situation?

Ineed i do not understand i'm only 8

Let the closed interval [a , b] be the domain of function f. the domain of f(x - 3) is given by (a) the open interval (a , b) (b) the closed interval [a , b] (c) the closed interval [a - 3 , b - 3] (d) the closed interval [a + 3 , b + 3]

3382-299=3383- ? fill in the blank?