Microeconomics help? Thanks soooo much!?

Question

With tradable emissions permits, the price of the permit is determined by:

the government

the supply and demand of permits

environmental protection organizations

the World Trade Organization.

The two principles of tax fairness are:

the minimize distortions principle and the maximize revenue principle

the benefits principle and the ability-to-pay principle

the proportional tax principle and the ability-to-pay principle

the equity principle and the efficiency principle

The structure of the U.S. federal income tax system reflects the:

tax-efficiency principle

ability-to-pay principle

benefit principle.

lump-sum tax principle

Answer 1

I thought you "know all", as your nickname says :)

Answer 2

Read your text book.