During the Arkansas and Texas tech game the Razorback t-shirt shop made $ w by selling x t-shirts. What is the cost of each t-shirt?
Let's say that the cost of one t-shirt is $c$. 

The total revenue from selling t-shirts is $w$. 

The number of t-shirts sold is $x$. 

We know that: 
$$w = x \cdot c$$
$$c = \frac{w}{x}$$