You first need to multiply 22 by 475 since it is asking us how much in 22 months. So 22 x 475= 10,450. Then the question is asking us how much money left to pay after the 22 months so you subtract 10,450 from 12,750. Which is 12,750-10,450=2300 dollars.
Hope I helped!
Equation: 12,750-(22x475)
Answer:2300