Respuesta :
Answer years and 1 month. Explanation: To be worth $9000, he has to have earned $3000 in interest. Using the formula for simple interest.
Step-by-step explanation:
I did $6,000 times the simple I trust rate of 5.5, then saw it was $380 and did $8,000-$6,000 and got the 2,000 and then divides that by the $380 and got 5.26 so I would pick about 6 years