What dose IDEK mean??

Is psychology a science? use evidence form the article to explain you answer.

Which is the term used for a drug that increases the activity of the nervous system

Two shoppers bought meat at the supermarket deli. the first shopper bought 3 pounds of meat for $9,87 . the second bought 4 pounds of meat for $16,76. can you tell if both shoppers bought the same kind of meat.