How does the 4 in the number 4,326 compare to the 4 in the number 324,765

What is the result of adding the system of equations? 2x+y=4 3x-y=6

Check image and write the letter of the answer

The library sells 376 books at its annual used-book sale. the sale takes in a total of $2119. children's books cost $4, and adult books cost $7. let x = number of children's books sold, and let y = the number of adult books sold. which system of equations can the librarians use to model this situation?