Hi, there! Reading a passage on getting employment, I came across the following sentence: At Cornell’s School of Hotel Administration, for example, bachelor’s degree graduates get an average of four or five job offers with salaries ranging from the high teens to the low 20s and plenty of chances for rapid advancement. I'm puzzled by the part "ranging from the high teens to the low 20s". I wonder whether that part refers to the age range of the graduates or to the salary range in the sentence. Please help me crack this puzzle. Thank you!