Simplify the Following Expression

question 60

Multiple Choice

Simplify the following expression. Do not use parentheses or negative exponents.

• A) 81
• B) -81
• C) -18

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Definitions:

Multiple Sclerosis

A chronic autoimmune disease affecting the central nervous system, characterized by damage to the myelin sheath that surrounds nerve fibers.

Down Syndrome

This condition, where an individual has an extra chromosome 21, results in alterations in physical and developmental traits.

Social Referencing

The process by which individuals look to others in their environment for cues on how to react or feel about unfamiliar situations or stimuli.

Insecure Attachment

A type of emotional bond which is marked by anxiety or avoidance in relationships, stemming from inconsistent caregiver responses in early life.