Please help me, i don’t understand how to do this

Determine if the equation defines y as a function of x: 2xy = 1. yes o no

At a book fair, joe bought 24 books at 3 for $5 and had $2 left. how much money did he have at first?

First work with stencil one. use a combination of reflections, rotations, and translations to see whether stencil one will overlap with the original pattern. list the sequence of rigid transformations you used in your attempt, noting the type of transformation, the direction, the coordinates, and the displacement