In what states was slavery legal

Oklahoma and Nebraska

Explanation: "For starters, Nebraska, which was admitted in 1867, did have legal slavery under the provisions of the Kansas-Nebraska Act in its territorial period. And in Oklahoma (admitted 1907), some of the Indian tribes had slavery, and some even fought for the Confederacy."

Slave States, U.S. History. the states that permitted slavery between 1820 and 1860: Alabama, Arkansas, Delaware, Florida, Georgia, Kentucky, Louisiana, Maryland, Mississippi, Missouri, North Carolina, South Carolina, Tennessee, Texas, and Virginia.

Explanation:

1 a

2 c

3 c

4 b

5 a

hope this

the answer is 1.. i think