Please help me on this Sub-Saharan Africa quiz!

What would happen if airlines and baseball stadiums priced all seats the same instead of using variable pricing

Immigrants arriving in the united states during the late 1800s experienced many difficulties. which of the following was a problem which large numbers of immigrants faced?

As societies modernize, what often happens to crime rates? a. they increase b. they decrease c. they remain the same d. they increase slightly and then fall rapidly