Secession would be the word your looking for
Answer:
ok June jfjf so the what he e w s. t
The correct answer is operational definition
Operational Definition is a procedure that assigns a meaning communicable to a concept by specifying how the concept is applied within specific set of circumstances. In another way, an operational definition is an accurate description of what something is and how to obtain a value for this is something we are trying to measure, that is, how to measure it. An operational definition has to be specific, concrete, measurable and useful for the people involved.
I think c but just take a guess on what u think
Answer:
1) They gave us the concept of zero (0)
2) The gave of the concept of the decimal system
3) They made seminal contributions to the study of trigonometry, algebra, arithmetic and negative numbers among other areas
I tried, hope this helps :)