Robin has 1⁄2 cup of icing. She uses the same amount of icing to cover 18 cupcakes.

How much icing in cups did she put on each cupcake?

A 1/9 cups
B 1/36 cups
C 9 cups
D 36 cups

B 1/36 cups

To find out how much icing Robin put on each cupcake, we need to divide the total amount of icing by the number of cupcakes.

We know that Robin has 1/2 cup of icing and she used the same amount to cover 18 cupcakes.

So, to find the amount of icing on each cupcake, we divide 1/2 by 18:

1/2 ÷ 18 = 1/(2 * 18) = 1/36

Therefore, Robin put 1/36 cups of icing on each cupcake.

The answer is B) 1/36 cups.