Who said “Beware of a little expense. A small leak will sink a great ship”?

Suppose you had $100 in your savings account with a 2% annual interest. After 5 years, how much will you have in this account if you leave your money to gain interest?

Your savings account has a 1% annual interest and the annual inflation is 2%. After a year, will you be able to buy more than today using the money saved in this account?

Is the following statement true or false? “Buying a single company stock usually provides a safer return than a stock mutual fund.”

You want to borrow EUR 500 from a money lender (M1). He says that you can get it but you must pay him EUR 600 in a month. Another money lender (M2) says you have to pay EUR 600 plus 15% in a month. Which one is better?

Assume a friend inherits EUR 10,000 today and his sibling inherits EUR 10,000 three years from now. Who is richer because of the inheritance?

Suppose that in the year 2024, your income has doubled, and prices of all goods have doubled too. In 2024, how much will you be able to buy with your income?