Help with this pls the image is attached

Find the balance at the end of 4 years if 1000 is deposited at the rate of

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?