Which culture first developed an understanding of the concept of zero?

a) olmec
b) maya
c) aztec
d)mexica

The Aztec culture were the ones to first develop the concept of 'zero'. 

I believe the answer is A) Olmec

Hope this helped :)

Cherokee  removal, part of the trail of tears, refers to the  forced  relocation between 1836 and 1839 of thecherokee  nation from  their lands ingeorgia, south carolina, north carolina, tennessee, texas, and alabama to the indian territory (present day oklahoma)  in  the thenwestern united states, and the resultant deaths