The table below shows the weekly demand for machine screws at the local hardware store. Demand for Machine Screws Price (dollars per pack) Quantity (packs of 100 screws) $8.00 0 7.50 40 7:00 100 6.50 160 6:00 220 5.50 280 5.00 340 4.50 400 4,00 460 3.50 520 580 Instructions: Round your answers to 2 decimal places. If you are entering a negative number include a minus sign. a. Using the starting point method, what is the price elasticity of demand from a price of $7.50 to a price of $7,00 per pack of 100 screws? b. Using the starting point method, what is the price elasticity of demand from a price of $5.50 to a price of $5.00 per pack of 100 screws? c. Using the starting point method, what is the price elasticity of demand from a price of $4.00 to a price of $3.50 per pack of 100 screws? Windows