Two students in the same Spanish class, Jessica and Eva, plan to get together after school to make vocabulary flashcards. Jessica started on the project yesterday and has already made 6 flashcards. Eva hasn't started yet. Since Jessica makes 4 flashcards per minute and Eva makes 7 flashcards per minute, Eva will soon have the same number of flashcards. How long will that take? How many flashcards will each student have at that point?

Jermaine has t subway tokens. karen has 4 more subway tokens than jermaine. raul has 5 fewer subway tokens than jermaine. which expression represents the ratio of karen's tokens to raul's tokens

Quick! a survey of 57 customers was taken at a bookstore regarding the types of books purchased. the survey found that 33 customers purchased mysteries, 25 purchased science fiction, 18 purchased romance novels, 12 purchased mysteries and science fiction, 9 purchased mysteries and romance novels, 6 purchased science fiction and romance novels, and 2 purchased all three types of books. a) how many of the customers surveyed purchased only mysteries? b) how many purchased mysteries and science fiction, but not romance novels? c) how many purchased mysteries or science fiction? d) how many purchased mysteries or science fiction, but not romance novels? e) how many purchased exactly two types of books?

Why is studying fractions important