Why does George Baker keep a detailed list of monthly expenses and income?

To regulate his spending and spend money according to budget.

Explanation:

A detailed list of monthly expenses and income constitutes a budget. A budget, simply put, controls how money flows and how it should be spent. It also determines how money is saved. In a nutshell, the budget is a responsible way of spending money while saving for the future. A typical equation for savings is like this:

i believe it is

1. 저는 사과를 머거요.

2. 너는 자야지.

3. 재석는 앉어 있었다.