If the United States is currently importing 14 million barrels per day at a world price of $4.00 per unit (the entire amount consumed), what is the effect on imports of a tax equal to $4.00 per unit? 1.) Using the line drawing tool, help determine the quantity of U.S. crude oil imports after the $4.00 per-unit tax by drawing a horizontal line at the price paid by U.S. consumers. Label this line '+ Tax'.