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The tables to the right give price-demand and price-supply data for the sale of soybeans at a grain market, where x is the number of bushels of soybeans (in thousands of bushels) and p is the price per bushel (in dollars). Use quadratic regression to model the price-demand data and linear regression to model the price-supply data. Complete parts (A) and (B) below. Price-Demand Price-Supply x p = D(x) x p = S(x) O 6.71 0 6.39 10 6.54 '10 6.41 20 6.45 20 6.47 30 6.39 30 6.54 40 6.31 40 6.56