Question

three types of income tax that people pay? choose three correct answers.
federal
sales
flat
progressive
local
state

Explanation:

Income taxes people pay include federal (national - level income tax), state (state - level income tax), and local (local - level income tax) income taxes. Progressive and flat refer to tax rate structures, and sales tax is a different tax type (on sales, not income). So the correct three are federal, state, local.

Answer:

federal, state, local