Which of the Following equations has a solution if -50

Why did the strike at the pullman plant in chicago become a nationwide strike?

Which of the following characterize the historical move toward urbanization? i. increase in pollution ii. increase in frequency of natural disasters iii. increase in incidence of infectious disease a. i b. ii c. i and ii d. i and iii e. i, ii and iii

Treatment of psychological disorders: a. can offer significant relief b. often makes the problem worse. c.is often unclear d. is rarely .