How to do it, please explain it clearly?? How to make things clear

Reduce the area of the circle with a large circle.

Writing is to convey ideas, and making things clear is the most basic requirement of writing. So whether it's a story, an expository essay, a prose, or a **, I hope to express a clear meaning through words.

How do you make things clear? This requires the use of a writing technique called the narrative method. There are three types of narrative methods, namely story narration, logical narration, and divergent narration.

Storytelling is to tell a thing clearly in the order of time and development; Logical narrative is to describe an event in the order of summarizing first and then separating; Divergent narration is to find an entrance and think about the outcome or everything related to the event. The narrative method supports the context of the article, and it is also the key to open the door to writing.

The original formula is (3 4 5 ....×101）/(2×3×4×…Kaitansan 100).

The denominator of the original formula is (1 2 3 4 ....99) Xinhao (2 3 4 ....×100）

So the original = (3, 4, 5 ....×101）/（1×2×3×4×…×99）

It's hard to say x x

1. a+a+a+b+b=28

a+a+b+b+b=27

Equivalent to 1 a+1 a+1 a+1 b+1 b+1 b=281 a+1 a+1 b+1 b+1 b=27 according to the commutative law of multiplication:

Analysis: a (1+1+1)+b (1+1)=28 gets: 3 a+2 b=28

b=14-3×a/2》

2×a+3×b=27

Swap out the a of the second equation to get :

2×a+3×(14-3×a/2)=27

The conversion yields: a=6

Take the a=6 in the first equation to get it.

3× 6×2×b=28

Simplified b = 5

2. There is ambiguity in this question.

After 8 km, it is counted as per km.

Because so kilometers).

Over 8 km, $ per km.

Money needed within 8 km:

yuan) 8 km away from the remaining money:

Yuan) 8 kilometers away from the distance taken:

km) total distance traveled:

8+4=12 (km).

Note: By answering as an integer, you can know that the second comprehension question is chosen.

Elementary school has a binary equation!! (