Add or Subtract the Rational Expressions $\frac { 5 } { 4 x } + \frac { 6 } { 5 y } - 3$

question 191

Multiple Choice

Add or subtract the rational expressions. $\frac { 5 } { 4 x } + \frac { 6 } { 5 y } - 3$

• A) \(\frac { 25 y + 24 x } { 4 x + 5 y } - 3\)
• B) \(\frac { 25 y + 24 x - 60 x y } { 20 x y }\)
• C) \(\frac { 25 y + 24 x } { 20 x y }\)
• D) \(\frac { 20 y + 30 x - 12 x - 15 y } { 4 x + 5 y }\)

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Definitions:

Nurture

The influence of environmental factors, such as upbringing and life experiences, on an individual's development and personality.

Brain Cortex

The outer layer of the cerebrum in the brain, involved in higher-level processes such as consciousness, thought, emotion, reasoning, language, and memory.

Enriched Environment

A setting that promotes learning and development through increased opportunities for social, physical, and cognitive stimulation.

Epigenetic Marks

Chemical modifications to the DNA or histones that can change gene activity without altering the DNA sequence, impacting gene expression and potentially linked to various health outcomes.