Table below shows the demand for haircuts from seniors and other customers on an average weekday In the local hairdressing shop. Quantity Demanded by Quantity Demanded by Price of Haircut Seniors Other Customers $20 3 7 18 6 8 16 9 9 14 12 12 15 11 10 18 12 8 21 13 6 24 14 4 27 15 2 30 16 a) Between the prices of $16 and $20, which of the two demands is more elastic? Round your answers to 2 decimal places. The price elasticity of demand for seniors Is 1.80 The price elasticity of demand for other customers Is 1.12 The elasticity of demand is greater for seniors b) What price would give the shop the greatest sales revenue? 12