Lanni checks out 6 sets of books from the library. each set has the same number of books. she reads 7 of the books, and has 11 books left to read. how many books are in each set?

You invested $5000 between two accounts paying 4% and 9% annual interest, respectively. if the total interest earned for theyear was $350, how much was invested at each rate? $was invested at 4% andwas invested at 9%.

With: label the vertices and all the elements needed. find x

Can someone me and do the problem plz so i can understand it more better