Final answer:
The amount of the down payment for the drum set is $125.00.
Step-by-step explanation:
In order to find the amount of the down payment, we need to calculate 10% of the total price of the drum set.
10% of $1,250 = $1,250 x 0.10 = $125.00
Therefore, the amount of the down payment is $125.00, which is option 2.