A statement of equality between two ratios

In which figure is de bc ? a. figure 1 b. figure 2 c. figure 3 d. figure 4

Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.

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?