The easiest way to do this is the following: if the amount increases with 7% each year, it means that you have to multiply the £400 by 1,07. Then you multiply that answer by 1,07 and one time again. The final answer is 490,0172
Are you searching for how much Eva has or Justin?
Are those your only choices?
You could multiply again by 2 or long multiply by 2
B because it shows more figure