Carla is taking attendance for her sixth-grade class. She knows that 2 students are in the restroom, and one less than three times that number of students are absent. If there are four rows with six desks each that are all 2/3 full, how many students does Carla teach, including the ones in and out of the classroom?
First find the number of absent students: 2 students * 3 - 1= 
<gadget id="calculator">2*3-1</gadget>
<output>5</output>
5 students.
Now find the number of students in each row of desks: 6 desks/row * 2 students / 3 desks = 4 students/row.
Now find the number of students in all the rows: 4 rows * 4 students/row = 
<gadget id="calculator">4*4</gadget>
<output>16</output>
16 students.
Now add the students that are absent or in the bathroom: 16 students + 2 students + 5 students = 
<gadget id="calculator">16+2+5</gadget>
<output>23</output>
23 students.

<result>23</result>