Answer:
d
Step-by-step explanation:
because
Income of the first account after x years:

Income of the second account after x years:

Equating the above tw values we get the equation:

Solving the above equation for x:

Answer 8 years.
The two events are related and often or always follow each other
You multiply five by 3.75 and you get 18.75 ft. to get yards you divide by three and you get 6.25 yards