Select the correct augmented matrices. Liam wants to buy a car and pay for it in three installments the total cost of the car is $29,000. Two times the first installment is $1000 more than the sum of the third installment and three times the second installment. Liam must pay 15% interest on the second and the third installments: The interest will amount to $2100. If x, y, and a represent the first second and third installments respectively identify the augmented matrices that model Liam’s situation.