Answer:
If both Monica and Mason earn on average of 7 percent APY, Monica will have larger mutual fund balance in 20 years.
Step-by-step explanation:
As given, Monica starts a mutual fund with 500$ and add 500$ for more nine years but Manson decided to deposit 5,000$ to invest at single time after the 10 years of waiting but Monica will have larger mutual fund because she will get the compound interest from her mutual fund for 10 years as compared to Manson as well as she has the opportunity to invest the earning again as she wants so she has the greater advantages in terms of money for investing earlier than Manson.