After the announcement of a sale, a bookstore sold % of all

Last updated: 7/20/2022

After the announcement of a sale, a bookstore sold % of all its books in stock. One the following day, this bookstore sold 4,000 more books. Now only 1/10 of the number of books in stock before the sale remain in the store. How many books were in stock before the announcement of the sale? a. 8,000 b. 10,000 c. 12,000 d. 15,000 e. 20,000