Please help me i need it

How has the immigration of the 1990s affected the social and economic life of the united states?

Aprovision of the general agreement on tariffs and trade treaty (gatt)increased taxes on services between the us, mexico, and canada.reduced international tariffs on industrial goods by forty percent.increased us tariffs on agricultural products by forty percent.ended taxes on goods traded by the us, mexico, and canada.

What is the supreme court case of smith vs robinson about?