Write the Expression with Only Positive Exponents and Evaluate If $$\frac { \frac { y } { 5 } } { \frac { 9 } { y + 4 } }$$

question 264

Multiple Choice

Write the expression with only positive exponents and evaluate if possible. Assume all variables represent nonzero real
numbers.
- $$\frac { \frac { y } { 5 } } { \frac { 9 } { y + 4 } }$$

• A) \(\frac { 9 y } { 5 ( y + 4 ) }\)
• B) \(45 y ( y + 4 )\)
• C) \(\frac { y + 4 } { 45 y }\)
• D) \(\frac { y ( y + 4 ) } { 45 }\)

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Definitions:

Concentration Differences

Variations in the amount of a particular substance across different spaces or mediums, often leading to diffusion.

Higher Concentration

Refers to a situation where there is a greater amount of solute per unit volume of solvent in one part of a solution or mixture compared to another.

Inside Cell

Pertaining to the internal environment or components within a cell, including organelles, cytoplasm, and genetic material.

Plasma Membrane

This is a protective double lipid layer encasing the cytoplasm of a cell, overseeing the transportation of substances across the cell boundary.