Answer:
100
Step-by-step explanation:
All angles in a triangle equal to 180.
80+20=100
180-100=80
The line is 180
180-80=100
so if 5.5 is in meter let change it to cm because the question want us to give the answer in cm.


now we multiply 5.5 times 100 which is equal to 550.
next we subtract 550 - 220= 330.
finally, the difference between a teacher and student is 330cm .meaning the teacher's desk is 330 cm longer or taller than the student.
<span>Many simple inequalities can be solved by adding, subtracting, multiplying or dividing both sides until you are left with the variable on its own.But these things will change direction of the inequality: ...<span>Don't multiply or divide by a variable (unless you know it is always positive or always negative)</span></span>