Robin has w packages of gum and x packages of candy. There are y pieces in each package. How many pieces of gum does Robin have?
Step 1: How many pieces of gum does Robin have in total? 

We know that Robin has w packages of gum and x packages of candy. There are y pieces in each package. 

So, we can say that Robin has w*y packages of gum and x*y packages of candy. 

Step 2: How many pieces of candy does Robin have in total? 

We know that Robin has w packages of gum and x packages of candy. There are y pieces in each package. 

So, we can say that Robin has w*y packages of gum and x*y packages of candy. 

Step 3: How many pieces of gum does Robin have in total? 

We know that Robin has w packages of gum and x packages of candy. There are y pieces in each package. 

So, we can say that Robin has w*y packages of gum and x*y packages of candy. 

Therefore, Robin has w*y pieces of gum.