What was the significance of Nelson Manela’s election to office in South Africa?

Amountain is larger than a hill, with steep sides true or false

Given: circle a externally tangent to circle b. how many possible common tangents to circles a and b can exist? 2 3 4

Mexico city is an example of how humans alter their environment because it was a. one of the world’s largest cities b. built on drained and filled lake beds c. built after conquest by the spanish d. once the capital of the aztec empire