What is a library and three other types of a library

A library is a collection of sources that are curated by experts and made accessible to people of a certain area or community.

3 types of libraries:

academic libraries (universities)

public libraries (cities and towns)

school libraries (in K-12 schools)

A library is a collection of resources in a variety of formats that is organized by information professionals or other experts who provide convenient physical, digital, bibliographic, or intellectual access and offer targeted services and programs with the mission of educating, informing.

There are four major types of libraries:

- Academic libraries: serve colleges and universities.

- Public libraries: serve cities and towns of all types.  

- School Libraries: serve students from kindergarden to grade 12

- Special libraries: are in specialized environments, such as hospitals, corporations, museums, the military, private business, and the government.

Hope this helps

Explanation:

substitute y = 2x - 4 to x + 2y = 12:

x + 2(2x - 4) = 12     use distributive property

x + (2)(2x) + () = 12

x + 4x - 8 = 12     add 8 to both sides

5x = 20     divide both sides by 5

x = 4

put the value of x to the first equation:

y = 2(4) - 4

y = 8 - 4

y = 4

this answer to this question is c. allegory

why?

stories with allegories have a hidden symbolic meaning with a theme. the hidden meaning can be political, or other real life problems.