Add or Subtract

question 60

Multiple Choice

Add or subtract. Then simplify. If a denominator has two or more factors (other than monomials) , leave it in factored form. Express the answer using the denominator of the first fraction when applicable.
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Definitions:

Human Activity

Actions or endeavors undertaken by humans, often influencing the environment or society.

Climate Change

Refers to significant changes in global temperatures and weather patterns over time.

Ecological Economic

An interdisciplinary field that combines ecology and economics to study the relationships between ecosystems and economic systems, focusing on sustainability, resource management, and environmental impact.

Earth Hour

An annual global event encouraging individuals, communities, and businesses to turn off non-essential electric lights for one hour as a symbol of commitment to the planet.