Ms. Smythe keeps Eric after school whenever he swears in class. Even though Eric has been kept after school each day for the past three weeks, his swearing has increased rather than decreased. Given what we know about the effects of punishment on behavior, Ms. Smythe should probably conclude that:

acid rain is the answer

what is the tax base for the sales tax?

it should be (usually ) 6%

european feudalism was a combination of legal and military customs in medieval europe that flourished between the 9th and 15th centuries. broadly defined, it was a way of structuring society around relationships derived from the holding of land in exchange for service or labour.

japanese feudalism. the era of feudalism in japan took place from the 12th through 19th centuries. during that period local rulers, either powerful families or military warlords, dominated the land, while the emperor was merely a figurehead and not a significant political presence.