Gina is putting together a desk. There are 28 screws and 16 pieces of wood. What is the ratio of screws to pieces of wood?

To find the ratio of screws to pieces of wood, divide the number of screws by the number of pieces of wood:

28 screws / 16 pieces of wood = 1.75

Therefore, the ratio of screws to pieces of wood is 1.75:1.