I have the first 3 answers for you but I going to try to get the 4 answer for you
1. 39
2. 9
3. 62
Dutch trade, science, military, and art were among the most acclaimed in the world.
For this case we have that by definition, a linear function is of the form 
If we have that a and b are linear functions, then they are of the form:

If we multiply them we have: (Applying distributive property)

That is, we get a quadratic function.
Answer:

B because no one really cares if u can do it they just want to know if you did it or not and how well u did.
Answer:
The Gilded Age is the latter half of the 19th century, when an increase in production and wealth drove many more people to live in urban areas than had ever before. The middle class gained more wealth and sought to live like the elite upper class. ... Puritans lived in small settlements and avoided excess wealth.