I must take exception to algebra being useless. I have used algebra extensively since graduating from college. I have spent thousands of hours developing spreadsheets for financial modeling, forecasting, building financial statements (cash flow, balance sheets, income statements) for purposes of business planning and financing. I don't type in numbers for my financial statements. I write complex formulas (algebraic expressions where the variable are references to other spreadsheet cells). That way I can build a list of assumptions. When I change a cost of one item, or change the sales price of an item, the entire set of statements will recalculate. So I can see how a small change affects the financial statements for years to come. In the late eighties, my pro-forma spreadsheets, with thousands of formulas, helped our company land a 1.5 million dollar venture capital investment deal. I could not have started several businesses and earned what I did without that useless algebra in my business plans. If you go through life thinking that education and information is useless, you limit your own options in life. Think of everything you learn as a set of tools to put in your tool box. Then one day, when you encounter an opportunity, you might just be able to solve a problem that most people cannot solve. That is how most people build businesses and become wealthy. They solve the problem that no one else can. But you need a set of skills and tools to take advantage of those opportunities when they come in life.