The table below shows the 24 prizes that a teacher had in a box. The teacher will add more prizes to the box but does not want to change the ratio among the three types of prizes. Prize Number in the Box Bookmark 12 Pencil 8 Eraser 4 If the teacher adds two more pencils to the box, how many more bookmarks and erasers must he add to the box to keep the ratios the same? You must show your work or explain your reasoning in the space below.