Simplify the Expression 13 - (6 - 2)and the Expression

question 133

Multiple Choice

Simplify the expression 13 - (6 - 2) and the expression (13 - 6) - 2 to show that subtraction is not an associative operation.

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Definitions:

Meristem

Zone of undifferentiated parenchyma cells, the divisions of which give rise to new tissues during plant growth.

Secondary Xylem

The part of a plant that contributes to wood formation, responsible for water transport and structural support.

Cork Cambium

Lateral meristem that produces cork.

Primary Xylem

The first-formed xylem in a plant, responsible for water and mineral transportation, and it contributes to the plant's structural support.