questions related to finance.

1) A company hired two employees of $40000 each starting today. These salaries will grow at 2% per annum for 14 years. The company will hire two additional employees at the end of 5 years with salaries of $35000 each(at 5 year). these salaries will grow at 2% per annum threafter. the new employees will recived 10 payment in totaol. the interest rate is 3%. how much funding does this charity need today in order to meet the salary obligations?

2) decision on which pension should a client take. option A: a lump sum payment of $210,000 five years from today. Option B: Equal payments of $18000 every year for 15 years with the first payment five years from today. interest rate is 3.5%, which option is preferable?

3) she wants to deposit money into a bank. she will deposit $550.50 today, then at the end of next year she will deposit $720.02, at the end of 2 years-$880.80.

at the end of 3years-$909.09, at the end of 4 years- $1111.1. compound annual interest rate is 3%. if she doesnot remove any money, how much will she have in total in her account at the end of seven year?