i need help with 8 and 9, i know what the answers are but i dont know how to get them. can you guys explain them to me with details, please

mere 8) For the most recent piscal year, the Hammock Company's total assest 850 and net income was equal to $ 97, to $ 97 of the 97 net net income $44 was retained what is the internal rate for the Hammock company? don't know 5.46% How to get the growth answer a) For the most recent fiscal year, the Hammack company's is total equity equity was $ 450 and net income $44 was equal to $ 97 of the 97 net income, was retained. What is the sustainable growth nate for the Taddes company? 10.83 %