Replace? with an expression that will make the equation valid. d (2-3x)-5(2-3x)? 4 dx The missing expression is Use the price-demand equation to determine whether demand is elastic, inelastic, or has unit elasticity at the indicated value of p. 2 x= f(p)=3,630-10p, p = 10 Is the demand inelastic, elastic, or unit? O Elastic Unit O Inelastic Find dy dx y=5log 2X dy dx || (Simplify your answer.)