21) Of these choices, the BEST example of a regressive tax in the United States is
A)
corporation tax
B)
the state income tax.
the federal personal income tax.
D)
the federal excise tax on gasoline.

the correct answer is b, "fertility rates are increasing, so populations will grow more quickly in the future."

cornfield (filler filler filler filler ignore this filler filler)

question as stated in comment

why did the chinese require the portuguese to pay for goods in gold and silver when trading?

choices

portuguese goods were less valuable than chinese goods.

the chinese already had a surplus of portuguese goods.

the imperial government wanted to stockpile gold and silver.

portuguese and chinese currencies were not exchangeable.

this a history q n in ancient time, theres no money exchange. so ans is portuguese and chinese currencies were not exchangeable.