Solve
-Two Angles Are Supplementary If the Sum of Their $180 ^ { \circ }$

Multiple Choice

Solve.
-Two angles are supplementary if the sum of their measures is $180 ^ { \circ }$ . If the measure of one angle is given by $\left( \frac { 31 x } { 18 } \right) ^ { \circ }$ and the measure of its supplement is given by $\left( \frac { 7 x } { 9 } \right) ^ { \circ }$ , find the measures of the two angles.

A) $72 ^ { \circ } , 108 ^ { \circ }$
B) $124 ^ { \circ } , 56 ^ { \circ }$
C) $36 ^ { \circ } , 144 ^ { \circ }$
D) $62 ^ { \circ } , 118 ^ { \circ }$