When a firm along with market power raises the price of a good a little, total revenue as: (w) falls in the inelastic range of the demand curve. (x) rises over the elastic range of the demand curve. (y) stays close to zero in the unitary-elastic range of the demand curve. (z) falls when the elasticity of demand exceeds 1.0.
Can someone explain/help me with best solution about problem of Economics...