1.A person borrows the amount of $1,000 to be repaid in 5 years at an interest rate of 20% per year. How much would this person pay at the end of year 5?

2. What amount is necessary to deposit now in a savings account paying 10% per year, to accumulate at the end of year 5 $10,000?

3. If $1,000 per year is deposited in a savings account paying 15% per year for 5 years, how much would the savings be at the time of the last deposit? Including the last deposit.

4. A person deposits in a savings account $10,000 per year for 5 years, after making the last deposit, immediately half of the balance is withdrawn. Subsequently, starting the following year $20,000 per year is deposited in the same account for 5 more years. If the savings account earns 10% per year, what amount would be withdrawn at the end of the year 15?

5. An electronics store is considering the purchase of software, which will minimize shipping costs. The software costs $10,000,000, including installation and training costs. If the interest rate is 15% per year and the useful life of the software is 4 years, with a salvage value of $50,000, what is the amount of annual savings that justifies the purchase of the software?

6. A project to manufacture and market smart locks compatible with Alexa and Google Home requires an investment of $3.5 million pesos. Considering that the equipment has a salvage value in year 5 of $400,000 and a rate of 10% per year.How much would the minimum annual profits have to be per year to justify the investment?

7. It is estimated that a certain piece of equipment can produce savings of $22,000 per year, with a life expectancy of 5 years and a salvage value of $8,000. If the company needs to obtain a return on investment of 10% per year, what is the price of the equipment that justifies the investment?

8. What amount should be deposited in a savings account paying 10% per year so that $700 can be withdrawn at the end of year 1, $1,500 at the end of year 3, and $2,000 at the end of year 5 and the account is depleted?