PLEASE HELP Seventy-five students say that they
routinely read books. Fifty-two students like
to read non-fiction books. Twenty-eight
students like to read mystery books. How
many students read both non-fiction and
mystery books?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers