Louisiana slave owners were able to legally work a slave: forever for 24 hours a day for 21 hours a day for only 16 hours a day

The answer is: the slave owners were able to legally work a slave only 21 hours a day.

The laws that regulated the life of the slaves in Louisiana, were stated in the Black Code of Louisiana (1806) and in the the Law of Slavery in the State of Louisiana, (1847). Therefore, the conditions of slaves were different from the rest of the country. These laws also stated other working conditions like free enjoyment on Sundays and a half hour for breakfast.

the installment plan of the 1920s, an arrangement that allowed people to buy what they wanted with a small down payment and pay off the rest in monthly installments, provided americans a way to own what they did not have the money to buy.

both eastern and western early north american cultures were known for building wigwams and longhouses.

wigwams, also called wetus, were small houses of 8-10 feet tall, made of wooden frames covered with woven mats and sheets that were used by algonquian indians. similarly,   longhouses were also used by algonquian and the iroquois tribes, and they were built as well with pole frames and elm bark covering. however, the main difference between wigwams and longhouses is that the latter was much larger than the former, with 200 feet long, 20 feet wide, and 20 feet high with inner raised platforms used for sleeping space.