Write an Equation That Expresses the Relationship $\frac { 6 } { 7 }$

Multiple Choice

Write an equation that expresses the relationship. Use k as the constant of variation.
-When the temperature stays the same, the volume of a gas is inversely proportional to the pressure of the gas. If a balloon is filled with 60 cubic inches of a gas at a pressure of 14 pounds per square inch, find the new pressure of the gas if the volume is decreased to 12 cubic inches.

A) 70 pounds per square inch
B) $\frac { 6 } { 7 }$ pounds per square inch
C) 56 pounds per square inch
D) 65 pounds per square inch