3. Break-even Analysis. The given table contains price-demand and total cost data for the production of treadmills, where p is the wholesale price (in dollars) of a treadmill for an annual demand of x treadmills and C is the total cost (in dollars) of producing x treadmills. a) Find a linear regression equation for the price-demand data, using x as the independent variable and explain what it means. b) Find a linear regression equation for the cost data, using x as the independent variable. Use this equation to estimate the fixed costs and the variable costs per treadmill. Round answers to the nearest dollar. c) Find the break-even points and explain what these mean. Round answers to the nearest integer. d) Find the price range for which the company will make a profit and explain what these mean. Round answers to the nearest dollar