need to figure out how to use excel formulas to solve or easiest way to solve via excel

A while ago, Mariam spent $52,000, to purchase some stock. The stock's value has risen by 7.75% since then. How much does Mariam have in stock now? Mercy has been investing for 5 years. Her portfolio has had the following returns: 6.00%,8.50%,0.00%, 1.00%, and 18.50%. What is the standard deviation of Mercy's annual rate of return? Ayomida invested $54,000 in Dangote's stock. She 3 has received $500 in dividends and the stock is now worth $58,000. What is Ayomida's holding period rate of return? Erick has been investing for 5 years. His portfolio has had the following returns: 5.00%,11.50%,0.00%, 8.50%, and 4.50%. What is Erick's geometric average rate of return? Eastern Tobacco's stock has risen by 10.25% since 5 Nebiyu purchased it. His stock is now worth $16,500. How much did Nebiyu spend on Eastern Tobacco's stock? Ronald has been investing for 5 years. His portfolio has had the following returns: 5.50%,10.50%,0.00%, 610.00%, and 10.50%. What is the difference, in basis points, between Ronald's arithmetic and geometric: average annual returns? Moise has been investing for 4 years. His portfolio 7 has had the following returns: 12.00%,5.00%, 11.00%, and 10.00%. What is Moise's holding period rate of return? Chloe has been investing for 5 years. Her portfolio 8 has had the following returns: 15,00\%, 14.00%, 0.00%,7.50%, and 9.00%. What is Chlo's average rate of return