Domestic sales of DVDs and videotapes (in billions of dollars) are approximated by the function g (a) Estimate the sales in 2006 and 2007 (b) Graph the function g for the period from 2001 to 2025 (c) Assuming that this model remains accurate, what does the shape of the graph = 10.357 + 3.74 In x, where x = 1 corresponds to 2001. suggest about DVD and videotape sales? (a) The estimated sales in 2006 was billion. Type an integer or decimal rounded to the nearest thousandth as needed.) The estimated sales in 2007 was $ billion. Type an integer or decimal rounded to the nearest thousandth as needed.)