What types of investments do banks use to make a profit? check all that apply.
1) opening checking accounts
2) starting new businesses
3) buying stocks and bonds
4) buying several properties
5) issuing loans to all customers
6)buying the rights to loans

From the mention options the bank uses the following three to earn money

Buying stocks and bonds: the bank work with bonds and shares, they issue it for companies and public institutions.  

Buying several properties: they buy properties to re sell or on leasing way as another way to earn profit

Buying the rights to loans: the bank makes money with the interest they change to the customer  

of what agreement it does not show

its tr3way you already know