The formula for simple interest is:
I=\frac{P\times t\times r}{100}
Given P = $75000, t = 12.5 years, and r = 3.45% or 0.0345:
I=\frac{75000\times12.5\times0.0345}{100}=323.4375
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Math Question: What is the derivative of f(x) = 3x^5 - 4x^3 + 2x - 7?
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What is the square root of 2500?
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Find the derivative of f(x) = 3x^2 - 4x + 7 using basic rules of derivatives.