Economics ? just number 1 the others are fine.

according to Oxford learner's dictionary:

"A progressive tax is a type of tax that takes a larger percentage of income from taxpayers as their income rises."

"A regressive tax is the exact opposite. Higher-income taxpayers pay a smaller percentage of their income than lower income taxpayers because the tax is not based on ability to pay."

i don't know the answer to this

answer; taking detailed notes during the interview;