QUESTION $10$

Baker Baseball$$Cards$,$ Inc. originally purchased the rookie card of$$Hammerin$\text{'}$ Hank Aaron for $$21\mathrm{.}00.$ After holding the card for $7$years$,$ Baker Baseball Cards auctioned the card for $$189\mathrm{.}00.$ What are the holding period return and the simple annual return on this$$investment$?$ FIND $($EAR$)?$