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How can I learn calculus on my own? How to choose a domain name? What is the volume and L of a 9.21 g sample of oxygen gas at 40.7°C that exerts 886.7 mmHg of pressure? ? Find the value of a&b if (x^2-5x+4) is a factor of the polynomial 2x^3+ax^2+bx-4. Express in factored form.? How many ground rods do I need for a short electric fence?