Suppose that the U.S. government decides to charge cola producers a tax. Before the tax, 35,000 cases of cola were sold every week at a price of $4 per case. After the tax, 30,000 cases of cola are sold every week; consumers pay $6 per case, and producers receive $3 per case (after paying the tax).

The amount of the tax on a case of cola is $__________ per case. Of this amount the burden that fails on consumer is $_________