When karen's mother got a new phone number, karen memorized it. but when she called her mother a day later, she called the old number. this is an example of interference?

The answer is a proactive interference. This is where an old data avoids the recollection of newer information. This might, for instance, happen with telephone numbers. When trying to remember a new phone number, the old phone number you have beforehand could proactively delay with the recall, to the fact when it is very hard to recall the new number.

answer; /// i do believe but not sure(nazi propaganda)//(anti-semitism); ( holocaust) plz check first; ///good luck

the money supply is the total amount of money available in the economy. how do changes in the money supply affect people and businesses?