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The RideEm Bicycles factory can produce 140 bicycles in a day at a total cost of $10,800. It can produce 160 bicycles in a day at a total cost of $11,600. What are the company's daily fixed costs (in dollars)? $ What is the marginal cost (in dollars) per bicycle? $ The Snowtree cricket behaves in a rather interesting way: the rate at which it chirps depends linearly on the temperature. One summer evening you hear a cricket chirping at a rate of 144 chirps/minute, and you notice that the temperature is 76F. Later in the evening the cricket has slowed down to 112 chirps/minute, and you notice that the temperature has dropped to 68"F. Express the temperature T as a function of the cricket's rate of chirping r. T(r) = 4x - 160 What is the temperature (in "F) if the cricket is chirping at a rate of 100 chirps/minute? 240 X OF Demand for Smartphones The following table shows worldwide sales of a type of phone and their average selling prices in 2012, 2013, and 2017. Year 2012 2013 2017 Selling Price p ($100) 3 2 Sales q (billions) 0.5 1 2 Find the regression line (round coefficients to one decimal place). 4(p) = X Use the regression line to estimate the demand (in millions of units sold) when the selling price was $340. X million Compute the sum-of-squares error (SSE) by hand for the given set of data and linear model. (5, 5), (6, 6), (7, 8); y= x - 1 SSE =