Which of the following is not a way in which redlining can increase economic problems in a city?
a.
residents may lose essential services.
b.
the city's tax base begins to increase.
c.
companies refuse to invest in poorer neighborhoods.
d.
cities may place services in nice areas.

an angle + its complement = 90 degrees

the first phase of the government’s plan for settlement was building the transcontinental railroad. the railroad provided a way to bring settlers and manufactured goods west and ship their agricultural and mining produce east. the transcontinental railroad was an essential artery for rapid development of the frontier.

the second phase of the government’s plan was a liberal land distribution policy that made it possible for many people to homestead. with these two key elements—transportation and cheap land—the government rapidly achieved its goal of persuading people to move west, settle on farms, and push back the frontier.