3. what appears to be the republican party's belief on government regulation of businesses
and corporations?

The Republican's party believed that the government's regulation of businesses and corporations caused more harm than good.

Explanation:

The Republicans were deeply against the government's influence on businesses and corporations. They believed that the government's supervision is not necessary because it only causes more harm. For example, they supported liberating financial institutions without the supervision from the government. They believe that the government only causes a wider gap between the rich and the poor and gradually kills the economy. Some regulations also cost so much for the businesses and corporations that it becomes a severe burden for them.

d) he bring down boss tweed and tammany hall.