Which of the following describes a reason for making a prediction when doing a controlled experiment?

Which best explains how this maneuver unblock a person's airway?

Which strategy is an example of how companies may upgrade themselves to meet changing customer preferences? a.doing door-to-door sellingb.using billboards to advertise the productsc. making online shopping services availabled.giving discounts on products

Drag each label to the correct location. each label can be moved more than once match the properties with the subatomic particle