Write the Solution Set Using Interval Notation $\frac { 2 } { 3 } + \frac { 6 } { 7 } \leq \frac { x } { 21 }$

Multiple Choice

Write the solution set using interval notation.
- $\frac { 2 } { 3 } + \frac { 6 } { 7 } \leq \frac { x } { 21 }$

A) $( - \infty , 32 ]$
B) $[ 32 , \infty )$
C) $( - \infty , 32 )$
D) $( 32 , \infty )$