Can you answer all questions?

3. The demand for cologne in a market is given Q = 20 2p + where m is the total income of the consumers. (1 each) a} What would he the price elasticity of demand if m. = 100 and p = 5'? b} What would be the price elasticity of demand if m. = 225 and p = 5? b} What would he the price level where the price elasticity is unit elastic when m = 100