Case 3: A person who receives $5,000 monthly salary is fired due to financial problems of the company. Consequently, he is paid his corresponding compensation, which includes 3 months of salary, days of seniority and tax deductions, which shows a net balance of $45,000. What fixed monthly income would the now unemployed represent for him to deposit the amount of his liquidation on an investment that pays 18% simple interest per year?

Case 4: What is the balance as of June 1 of a credit account that is charged monthly 18% annual simple interest and that have you had the following moves? March 1 Balance $85,000 March 15 makes a withdrawal $15,000 March 31 make a deposit $45,000 May 15 makes a withdrawal $20,000 May 31 make a deposit of $25,000