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Mav was comparing the price of ground beef at two stores. The equation y=4.81x represents the total cost, in dollars and cents, y, that it costs for x pounds of ground beef at SuperGrocery B. At SuperGrocery A, 4 pounds of ground beef costs $37.96.
How much more expensive is it, per pound, to buy ground beef at SuperGrocery A than at SuperGrocery B?