Final answer:
The customer pays $60 for the prescription, which is 30% of the $200 retail price.
Step-by-step explanation:
If the customer pays 30% of the retail price for a medication, and the retail price is $200, we need to calculate 30% of 200. To do this, you multiply 200 by 0.30:
30% of $200 = 0.30 × $200 = $60
So, the customer would pay $60 for the prescription.