I want to seriously think about students. So 80% of the books donated to the used book sale. They sold 48 books and oil how many books would donated to the used book sale justify your answer.

Rose drew a regression line for this paired data set. her line passed through (1, 2) and (3, 5) . what is the equation of rose's regression line?

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?