solve it clearly, without using excel sheet or tabels. solve it like student during exam face this question.

e. Savingsvestent latiu. 4.2.0) 10. Growth Fertilizer Company purchases a gravity settling tank by borrowing the $30,000 purchase price. The loan is to be repaid with four equal annual payments at an annual compound rate of 12%. It is anticipated that the tank will be used for 9 years and then be sold for $2000. Annual operating and maintenance expenses are estimated to be $9000/year. A savings of $15,000/year is realized over the present filtration system. The firm uses a MARR of 15% for its economic analyses. Determine the following. a. Present worth. (4.2.1) b. Annual worth. (4.2.2) c. Future worth. (4.2.3) d. Internal rate of return. (4.2.4) e) External rate of return. (4.2.5) f. Savings/investment ratio. (4.2.6) 8. Payback period with and without considering the time value of money. (4.2. e. Savingsvestent latiu. 4.2.0) 10. Growth Fertilizer Company purchases a gravity settling tank by borrowing the $30,000 purchase price. The loan is to be repaid with four equal annual payments at an annual compound rate of 12%. It is anticipated that the tank will be used for 9 years and then be sold for $2000. Annual operating and maintenance expenses are estimated to be $9000/year. A savings of $15,000/year is realized over the present filtration system. The firm uses a MARR of 15% for its economic analyses. Determine the following. a. Present worth. (4.2.1) b. Annual worth. (4.2.2) c. Future worth. (4.2.3) d. Internal rate of return. (4.2.4) e) External rate of return. (4.2.5) f. Savings/investment ratio. (4.2.6) 8. Payback period with and without considering the time value of money. (4.2