Suppose there are two biostatistics classes of 18 students and 12 students. the instructor gives them identical exams for the midterm. if the classes score an average of 82.3% and 89.8%, respectively, what is the average score for all students combined?

Do not comment if you aren’t going to . create a real-life situation and create a system and show how it might be modeled algebraically with a system of equations (or inequalities) show all work include a few sentences explaining the situation, your variables of choice and what each represents, and how you would set it up and solve it algebraically. !

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')

Identify the number 127 as a rational or irrational. explain