AFAIK the cart is a block in Drupal Commerce, you can disable the block and i...

AFAIK the cart is a block in Drupal Commerce, you can disable the block and it will get hidden. I am not sure what you mean by hiding price. You can refer the guide https://docs.drupalcommerce.org/commerce2 I guess you will find your answers there. You may also bring your questions in the #commerce channel on Slack.