What was life like in Cahokia ?

Cahokia was the largest city ever built north of Mexico before Columbus and boasted 120 earthen mounds. Many were massive, square-bottomed, flat-topped pyramids -- great pedestals atop which civic leaders lived. At the vast plaza in the city's center rose the largest earthwork in the Americas, the 100-foot Monks Mound.

how do you know that

explanation:

the median of the data is 4.

step-by-step explanation:

the median means the middle number of a given number.

to decide which one is the median, arrange in ascending or descending order. but sometimes, you may find two(2) number in the middle, but it's easy, just add them together and divide by 2.

so,   determine the median of the data. 2, 3, 3, 4, 5, 7, 9

it is already arranged, count 3 times forward and 3 backward and the one left is your answer.

2,3,3,4,5,7,9

our answer is 4.

hope this !