The training cost 250*12=$<<250*12=3000>>3000
The insurance pays for 3000*.9=$<<3000*.9=2700>>2700 for certification
That means she needs to pay 3000-2700=$<<3000-2700=300>>300
So her total cost was 150+300+3000=$<<150+300+3000=3450>>3450
#### 3450