Η τιμολόγηση δείχνει τη χρέωση ανά λεπτό.

They are the same article in different grammatical cases.

• η τιμολόγηση = the pricing
  Here η is the nominative feminine singular article, used for the subject of the sentence.

• τη χρέωση = the charge
  Here τη is the accusative feminine singular article, used for the direct object of δείχνει (shows).

So the sentence structure is basically:

• Η τιμολόγηση = subject
• δείχνει = verb
• τη χρέωση = object
• ανά λεπτό = per minute

In Greek, the feminine accusative singular article is historically την, but in modern Greek the final -ν is often dropped before certain consonants.

So both of these may appear in writing:

• τη χρέωση
• την χρέωση

In standard modern usage, the final -ν is usually kept before:

• vowels
• κ, π, τ
• γκ, μπ, ντ, ξ, ψ

Since χ is not one of those, τη χρέωση is the usual form here.

Τιμολόγηση is a noun. It means something like:

• pricing
• price setting
• billing, depending on context

It is a feminine noun, which is why it takes η.

Its ending -ηση is very common in Greek nouns that correspond to English abstract nouns ending in:

• -ing
• -tion
• -ment

Examples:

• η τιμολόγηση = pricing
• η ενημέρωση = update/information
• η οργάνωση = organization

Χρέωση means charge, fee, or billing amount, depending on context.

In this sentence, it refers to the amount charged. So τη χρέωση ανά λεπτό means:

• the charge per minute
• the per-minute charge

A useful contrast is:

• τιμολόγηση = pricing / billing structure / the pricing system
• χρέωση = a charge / what you are charged

So the sentence is talking about the pricing information and what charge it shows.

Because after ανά in this kind of rate expression, Greek usually uses the singular to mean per one unit.

So:

• ανά λεπτό = per minute
• ανά ώρα = per hour
• ανά άτομο = per person
• ανά κιλό = per kilo

This is very similar to English, where we also say per minute, not per minutes.

Very often, yes, especially in practical contexts involving rates, distribution, or units.

Common examples:

• ανά λεπτό = per minute
• ανά ημέρα = per day
• ανά άτομο = per person
• ανά κιλό = per kilo

But depending on context, ανά can also have a sense closer to:

• by
• according to
• for each

Still, in this sentence, per is definitely the natural understanding.

Δείχνει is the third person singular present tense of the verb δείχνω (to show).

So:

• δείχνω = I show
• δείχνεις = you show
• δείχνει = he/she/it shows

The subject here is Η τιμολόγηση, which is singular, so the verb must also be singular:

• Η τιμολόγηση δείχνει = The pricing shows

Yes. In many contexts, δείχνει can mean:

• shows
• indicates
• displays

So depending on the situation, this sentence could feel like:

• The pricing shows the charge per minute
• The pricing indicates the per-minute charge
• The pricing displays the charge per minute

Greek often uses δείχνει in a slightly broader way than a very literal visual show.

In this expression, λεπτό is in the accusative singular.

That is very common after ανά in modern Greek when expressing rates:

• ανά λεπτό
• ανά ώρα
• ανά μέρα
• ανά άτομο

For a learner, the most useful thing is to remember the whole pattern:

• ανά + singular noun = per + singular noun

Yes, Greek word order is more flexible than English because case endings and articles help show what each word is doing.

The neutral, straightforward order here is:

• Η τιμολόγηση δείχνει τη χρέωση ανά λεπτό.

This is the most natural way to present the information.

You could change the order for emphasis, but that would sound more marked. For example:

• Τη χρέωση ανά λεπτό δείχνει η τιμολόγηση.

That puts more emphasis on the charge per minute.

For learners, the original order is the safest and most natural.

A rough pronunciation guide is:

• Η τιμολόγηση → ee tee-mo-LO-yee-see
• δείχνει → THEEKH-nee
• τη χρέωση → tee KHREH-oh-see
• ανά λεπτό → a-NA le-PTO

A few pronunciation notes:

• η sounds like ee
• ει in δείχνει also sounds like ee
• χ is a rough sound, like the ch in German Bach or Scottish loch
• Stress matters:
  • τιμολόγηση
  • δείχνει
  • χρέωση
  • ανά
  • λεπτό

Yes, both are feminine nouns.

• η τιμολόγηση
• η χρέωση

Many Greek nouns ending in:

• -ηση
• -ωση

are feminine.

That is why:

• the subject uses η
• the object uses τη

This is a very useful pattern to recognize when learning vocabulary.