1 & 2 please

1. Your coin collection contains 1 hundred 1960 silver dollars.. If your grandparents purchased them for their face value when they were new, how much will your collection be worth when you retire in 2050, assuming they appreciate at an annual rate of 5.5%? 2. During 2018 Sotheby's sold an Elmer Degas Bronze sculpture, "Je voudrais un omlete du fromage" at auction for a price of $825,402. The previous owner had purchased it in 2012 at a price of $550,000. What was the rate of return on this sculpture