Accounting i know that when there's two panels its debit and credit but what is the third for what is each one

Suppose you hold a portfolio consisting of a $10,000 investment in each of 8 different common stocks. the portfolio's beta is 1.25. now suppose you decided to sell one of your stocks that has a beta of 1.00 and to use the proceeds to buy a replacement stock with a beta of 1.55. what would the portfolio's new beta be? do not round your intermediate calculations.

Acontinental polar air mass foms where

According to the video, the gross national product had declined from $104 billion in 1929 to about in 1933.