Martin just turned 25. For his birthday, he'd like to invest $3,000 into a bond that
earns 7% interest. How many times will Martin's investment double before he
withdraws it at the age of 70?
![Martin just turned 25 For his birthday hed like to invest 3000 into a bond that earns 7 interest How many times will Martins investment double before he withdra class=](https://us-static.z-dn.net/files/d91/f779936cf96501fb0e360334572aa85a.png)