Она вытащила телефон из сумки.

Because this is past tense feminine singular.

In Russian past tense, the verb agrees with the subject in gender and number:

• он вытащил = he took/pulled out
• она вытащила = she took/pulled out
• оно вытащило = it took/pulled out
• они вытащили = they took/pulled out

Since the subject here is она, the feminine form вытащила is required.

The dictionary form is вытащить.

That infinitive is perfective, so it refers to a completed action. In this sentence, the idea is that she did take the phone out; the action is viewed as finished.

A common imperfective partner is вытаскивать:

• она вытащила = she took it out / she managed to pull it out
• она вытаскивала = she was taking it out / used to take it out

Вытащила suggests pulling something out from inside something, often with a physical sense of extracting it.

A very common alternative is достала:

• Она достала телефон из сумки = she took the phone out of the bag
• Она вытащила телефон из сумки = she pulled the phone out of the bag

In many contexts, both work. Вытащила can sound a bit more physical or vivid, as if the object was actually pulled out.

It actually is the accusative, but for many masculine inanimate nouns, the accusative singular looks exactly the same as the nominative singular.

So:

• nominative: телефон
• accusative: телефон

This happens because телефон is:

• masculine
• singular
• inanimate

Compare with an animate noun:

• Я вижу брата = I see my brother

There, the accusative looks different.

Because the preposition из requires the genitive case.

The noun сумка changes like this:

• nominative: сумка
• genitive singular: сумки

So:

• из сумки = out of/from the bag

This is a very common pattern:

• из дома = out of the house
• из машины = out of the car
• из кармана = out of the pocket

Because из is used for movement out of the inside of something.

A bag is treated as a container, so:

• из сумки = out of the bag

By contrast, с is used for movement off a surface:

• со стола = off the table
• с полки = off the shelf

So if the phone was inside the bag, из is the correct choice.

Not by itself. It literally just means from the bag.

Russian often leaves possession unstated when it is obvious from context. So depending on the situation, из сумки could mean:

• from the bag
• from a bag
• from her bag

If you really want to specify her bag, you could say:

• из её сумки

But in normal Russian, that is often unnecessary if the context already makes it clear.

Because Russian has no articles.

So телефон can mean:

• the phone
• a phone

And сумки can fit:

• from the bag
• from a bag

Russian usually leaves definiteness to be understood from context, word order, and the situation.

Yes, very often.

Russian often drops subject pronouns when the subject is already clear from context. So in a story, you might simply get:

• Вытащила телефон из сумки.

That would still be understood as she took/pulled the phone out of the bag, if the listener already knows who is being talked about.

Including она can make the subject clearer or slightly more explicit.

Yes. Russian word order is flexible because case endings show grammatical roles.

The version here:

• Она вытащила телефон из сумки.

is a neutral, natural order.

But you could also say:

• Она из сумки вытащила телефон.
• Телефон она вытащила из сумки.

These alternatives change the focus or emphasis, not the basic meaning. English relies more on word order; Russian relies more on case.

You would normally use the imperfective verb:

• Она вытаскивала телефон из сумки.

This can mean things like:

• she was taking the phone out of the bag
• she kept taking the phone out of the bag
• she used to take the phone out of the bag

By contrast:

• Она вытащила телефон из сумки.

presents the action as completed.

A natural stressed version is:

Она́ вы́тащила телефо́н из су́мки.

A few useful notes:

• она́ — stress on the last syllable
• вы́тащила — stress on the first syllable
• телефо́н — stress on the last syllable
• су́мки — stress on the first syllable

Also, из before the voiceless с in сумки is often pronounced more like ис in connected speech. That is normal pronunciation.

In modern Russian, very often yes.

Телефон can mean telephone/phone in general, and in everyday context it often refers to a mobile phone unless something suggests otherwise.

If someone wanted to be more specific, they could say:

• мобильный телефон
• мобильник (more informal)

But in this sentence, телефон sounds completely natural.