Help me please!!! Thanks for your help!!!

PROBLEM A group of local investors wants to help a rural community in Gunica rebuild and maintain its recreational areas. In addition, they are interested in supporting boys who complete the high school quarter to continue their university studies. For this they have prepared the following plan: investor 1 offers to contribute $ 50K right now and $ 10K every 5 years indefinitely), investor 2, $100K right now and $20K every three years (indefinitely) and finally investor 3, commits to deposit $ 40K annually from years 1 to 10. a) Build the flowchart for this alternative. b) Determine the capitalized cost of this scheme and the equivalent in perpetual annuities, if investors can achieve an interest rate of 3% per year