Demand for one of OHaganBooks.com's other best-seller, The Secret Love of John O, is given by q =-3.07p+343 copies sold per week when the price is p dollars. Find the price elasticity of demand as a function of p and use it do determine the elasticity of demand for this book at a price of $20. (Round to two decimal places as needed.)

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Differential Equations

Have you ever observed the movement of the satellites and rockets or how the planets go around the sun in their orbits? How will you determine their motion? Definitely they follow some scientific laws and these kinds of problems are framed as differential equations.