The Razorback shop makes $ 20 dollars off each jersey and $ 5 off each t-shirt. During the Arkansas and Texas tech game they sold 49 t-shirts and 23 jerseys. How much more does a jersey cost than a t-shirt?
1. We know that the shop makes $20 off each jersey and $5 off each t-shirt. 
2. We also know that they sold 49 t-shirts and 23 jerseys. 
3. We want to know how much more a jersey costs than a t-shirt. 

To solve this problem, we can set up an equation. We know that the shop makes $20 off each jersey and $5 off each t-shirt. So, we can say that: 

$20x + $5y = Total amount of money made 

where x is the number of jerseys sold and y is the number of t-shirts sold. We also know that they sold 49 t-shirts and 23 jerseys. So, we can say that: 

x = 23 
y = 49 

Now that we have our equation set up, we can solve for the total amount of money made. We know that x = 23 and y = 49. So, we can plug those values into our equation: 

$20(23) + $5(49) = Total amount of money made 

$460 + $245 = Total amount of money made 