I am working on my econ class lesson taxes and government spending and I have been stuck for a great period of time I would greatly appreciate if you would help me on these last 4 questions I have been stuck on.

1. Why does Maureen Riehl state that Internet retailers have an "unfair price advantage" when they don't collect sales tax from out-of-state customers?
2. Why does Grover Norquist disagree with Riehl's statement?
3. Agree or disagree with the following statement: Taxing the Internet would discourage new technology investment and employment growth.
4. Why do you think the value of computer hardware purchased online was so much greater than the value of books or clothing purchased online?