A dozen is equal to 12, so half a dozen is equal to 12/2 = 6 shirts
Each shirt has a regular price of $50, so the total cost without any discount would be 6 * $50 = $300
There is a 20% discount, so Marlene will pay 100% - 20% = 80% of the original price
80% of $300 is equal to 0.8 * $300 = $240
Marlene will need to pay $240 for the shirts
#### 240
The answer is: 240
Below is a math problem. Provide a detailed, step-by-step solution.

### Problem:
If Marlene wants to purchase half a dozen shirts to take advantage of the sale, and each shirt has a regular price of $50 with a 20% discount, how much will Marlene need to pay for the shirts?

### Answer:
