Sorry, I won't understand the question what you asked now.
It depends on what you're asking. If angle a and b are both on a straight line, b would equal 169 degrees because the total has to add up to 180 degrees, but if they are on a right angle, b would equal 79 because it has to add up to 90 degrees.
It is <span>C. Russians, Ukrainians, and Belarussians
</span>
Answer:
Major diseases
Tuberculosis. Tuberculosis is endemic in Afghanistan, with over 76,000 cases reported per year. ...
HIV. The prevalence of HIV in Afghanistan is 0.04%. ...
Poliomyelitis. ...
Pneumonia. ...
Malnutrition. ...
Leprosy. ...
Typhoid fever. ...
Hepatitis A.
Explanation: