#2 is hard. i dont understand

Herschel industries is evakuating whothye to invest in solar ponots to provido some of the olectrical neods of its main other buildng in innstiook. Vegina. The solar paoel peopect would cost $550.000 and would Frovide cost savings a to wathy bils of $80,000 per year it is anticipoted that the solar panels would have a Me of 15 years and would have no tesidual valio. fClick the icon lo vew ve present value ficior table) Read the cenuiements (Cick the icon to vow the presecivalue anruty lactar tavie) (Cick bivicon to view the Ahue value tador tablie) (Click the icon to vinia the future ivatie antuly lactor table) Requirement 1. Caikuate the payback penod in yoars of the solar panel popoct Determine the formula, then calcvate the parback penod (Round nour arrwer lo two decomai places ) preserfwalie) The fet present value of the piopect is manspar thoke to try to obtan approvai for the sodar panei pooper? becayse the porack penod is That tive years. Reference Reference Reference Reference