Simplify
- $3 \sqrt { \frac { x ^ { 18 } } { y ^ { 7 } } } + \frac { 7 x ^ { 9 } } { y ^ { 3 } } \sqrt { \frac { 1 } { y } }$

question 64

Multiple Choice

Simplify.
- $3 \sqrt { \frac { x ^ { 18 } } { y ^ { 7 } } } + \frac { 7 x ^ { 9 } } { y ^ { 3 } } \sqrt { \frac { 1 } { y } }$

• A) \(\frac { - 4 x ^ { 9 } } { y ^ { 4 } }\)
• B) \(\frac { - 4 x ^ { 9 } \sqrt { y } } { y ^ { 4 } }\)
• C) \(\frac { - 4 x ^ { 9 } \sqrt { y } } { y ^ { 3 } }\)
• D) \(\frac { - 4 x ^ { 9 } } { y ^ { 3 } }\)

---

Definitions:

Sulfur Emissions

The release of sulfur compounds, primarily sulfur dioxide (SO2), into the atmosphere, often from industrial processes, causing environmental pollution and acid rain.

MSB > MSC

A condition where the marginal social benefit of consuming a good or service exceeds the marginal social cost, often justifying governmental intervention.

Methane Gas

A colorless, odorless gas that is a significant component of natural gas.

Marginal Social Cost

The cost society bears for the production of an additional unit of a good or service, including both private costs and externalities.