PLZ HELP 20 POINTS A small publishing company is planning to publish a new book. The production costs will include one-time fixed costs (such as editing) and variable costs (such as printing). The one-time fixed costs will total $13,260. The variable costs will be $12.25 per book. The publisher will sell the finished product to bookstores at a price of $18.75 per book. How many books must the publisher produce and sell so that the production costs will equal the money from sales?

Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

In the diagram of circle a what is m