Investiga cómo está compuesto el conjunto de números racionales

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expression 4s+9s represents the total number of items that will be displayed on s shelves. simplify the expression

Which is the solution to the inequality? 2 3/52 1/15 b< 3 2/15 b> 3 2/15

An object is translated by (x + 4, y - 2). if one point in the image has the coordinates (5, -3), what would be the coordinates of its pre-image? (9, -5) (1, -5) (9, -1) (1, -1)