What was the purpose of the Black Codes after the Civil War? To provide services for newly freed African Americans
To limit the rights of African Americans
To help African Americans exercise their rights
To help white farmers exercise their rights

To limit the rights of African Americans

254.34

step-by-step explanation:

the formula for area of a circle is given by

a = pi * r^2

a = pi * 9^2

a = 81*pi

using 3.14 as an approximation for pi

a = 3.14*81

a = 254.34

nations must cooperate to bring about and maintain world peace.

nations must not wage wars or commit war crimes in a desire to control other nations.

i think i know which options you have but if these aren't options let me know