Answer:
The answer is 387. Let's see why.
Explanation:
The computer costs $1548. And all the 12 payments are equal.
To find one payment we need to divide the total cost to the number of payments.

Each one of the payments is $129.
To find three payment we simply follow:
129 . 3 = 387
Another solution can be;
Since we are looking for 3 of the payments we can divide it to the total payment
which equals to

And we can find the answer by multiplying it with the cost which gives;
