Pls, help asap! 25 points! Explanation NEEDED! the question in the image! (i reuploaded the question)

Two friends are reading books. jimmy reads a book with 21,356 words. his friend bob reads a book with one-and-a-half times as many words. which expression represents the number of words bob reads?

Ms. aniston asked seven students in her class to collect pet food cans for a local animal shelter. the dot plot shows the number of food cans collected by each student. each dot represents one student. what is the median of the data set? a. 6 b. 9 c. 7 d. 8

How do i create an equivalent expression that includes parentheses so that the value of the expression is 2 for 3+8-4x2-12