Ut A prepositional phrase is a group of words that contains a preposition,
an object, and possibly a modifier. Some common prepositions are by.
from, through, to, of, above, at, behind, and with.
• When a prepositional phrase acts as an adjective, it tells what kind, how
many, or which one.
Read each sentence. Underline the prepositional phrases used as adjectives.
Then write the nouns modified by the prepositional phrases on the lines provided.
1. Our class went to the aquarium in the city.
2. We counted the sharks in the giant tank.
3. The one with the torn fin seemed quite mean.
4. A poster on the wall described their feeding habits.
5. The students in my class were somewhat frightened.
6. I have read many books about sharks.
7. My favorite has a long chapter on their habitats.
8. Angry encounters with humans are actually not very common.
Copyright The McGraw-Hill Companies, Inc.
9. That probably doesn't count sightings at the aquarium, though!
10. The aquarium's gift shop had an entire section of books about sharks.

breathe, think and analyze the situation, pull them aside and talk to them about it

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

the answer is "a" although apex might say best book of the year.

awnser:

one thing blogging and good copywriting share is a conversational style, and that means it’s fine to fracture the occasional rule of proper grammar in order to communicate effectively. both bloggers and copywriters routinely end sentences with prepositions, dangle a modifier in a purely technical sense, or make liberal use of the ellipsis when an em dash is the correct choice-all in order to write in the way people actually speak. but there are other mistakes that can detract from your credibility. while we all hope what we have to say is more important than some silly grammatical error, the truth is some people will not subscribe or link to your blog if you make dumb mistakes when you write, and buying from you will be out of the question.