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Where is the graveyard? How would you describe the Botany Boyz? Can anyone show me the steps of how to solve for "a" in this equation: h=( 1+ 2a)/a? Thank you, I really appreciate it!? Let f(x)=x2−4x−9 for x>2. Find the value of df−1/dx at the point x=−4=f(5).? What is the mass of 0.61 mol of sodium chloride (NaCl)?