‘| |’ means modulus.
It’s turns the internal value positive.
We get a negative answer while finding the area of a triangle because there points in the quadrant other than the 1st quandrant i.e where all values are positive
Area of a triangle can never be negative, so we use modulus
The answer to m2=91 is 40.5
$231.
165 divided by 5= 33
33 x 7= 231
$231
Answer: the answer is civilization
Step-by-step explanation: