1. Business
2. Finance
3. 19445

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4. I'm thinking that I will need $100,000 for my sons college education (I can dream can't I).
If I have 15 years until he enters college, can get a 10% return on my investment and the return is compounded semi-annually (2 times per year), how much do I need to invest EVERY 6 MONTHS? What is the formula for this question?