present perfect x present perfect continuous

I have been cleaning the house since 7am.

I have cleaned 3 rooms so far.

They have been studying for 8 hours.

They have read 100 book pages.

The lawyer has been tryiny to help him for 2 years.

He has been arrested 3 times.

She has been making cakes all day.

She hasn't made any chocolate ones.

They have been mountain clibing since they were 10.

They've never had a serious accident.

He has been travelling on business since the beginning of his career.

He has travelled all over the world.