Use reasoning to lead to the answer of the following question:
John needs to get a new seeing-eye dog. The adoption fee cost $150 for an untrained dog. It then takes 12 weeks of training which costs $250 a week. After the training, she needs certification which costs $3000 but her insurance covers 90% of that. What is her out-of-pocket cost?

3450
The training cost 250 * 12 = $3000.

The insurance pays for 3000 *.

9 = $2700 for certification.

That means she needs to pay 3000 - 2700 = $300.

So her total cost was 150 + 300 + 3000 = $3450.

.

Therefore, the answer is 3450