Abookstore buys used paperback books based on their weight. the store pays a constant amount per pound. danielle sold 8 pounds of books to the bookstore for $22. which equation shows the relationship between the number of pounds of books (x) sold to the bookstore and the amount (y), in dollars, the bookstore pays for the books? a. y = 22x + 8 b. y = 8x + 22 c. y = 22/8 x d. y =8/22 x