At st. algebra college, the math department ran some special sections of the freshman math course using a variety of innovative teaching techniques. students were randomly assigned to either the traditional sections or the experimental sections, and all students were given the same final exam. The results of the final are summarized here. What was the effect of the experimental course?

For how answer my question this will be the last question can you answer in math subject

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b