Robin has a table full of supplies that she will use to decorate picture frames. She decorated one frame with 3 buttons and 12 bows. On her other frames, she also wants to use 2 types of items on each picture frame, but only if the 2 items have the same unit rate as the items on the first frame. Which of the pairs of items could Robin use for the other frames?
7 stickers and 28 glue dots
5 buttons and 15 glue dots
4 gems and 16 flowers
6 stickers and 21 flowers
8 bows and 36 gems

Question

Robin has a table full of supplies that she will use to decorate picture frames. She decorated one frame with 3 buttons and 12 bows. On her other frames, she also wants to use 2 types of items on each picture frame, but only if the 2 items have the same unit rate as the items on the first frame. Which of the pairs of items could Robin use for the other frames?
   7 stickers and 28 glue dots   
   5 buttons and 15 glue dots  
   4 gems and 16 flowers  
   6 stickers and 21 flowers  
   8 bows and 36 gems