For example: i invest $1000 a month for 3 years w/ an average 10% return. How do i figure compound interest for the future of my investment. Basically i need around 40K in 3 years, so I’m trying to figure what i need to invest to make it a possibility. Thanks.Kenyatta

How long will it take an investment to double at 7% interest compounded continuously?? I also need the same question but triple instead of double. I’m just not getting how to solve for that. Thanks!Farah