Please help! Thanks.

Holding period and annual investment) returns. Bohenick Classic Automobiles restores and rebuilds old classic cars. The company purchased and restored a classic 1957 Thunderbird convertible 6 years ago for $8,700.00. Today at auction, the car sold for $69,600.00. What are the holding period return and the annual return on this investment? What is the holding period return of the car? % (Round to two decimal places.) What is the simple annual return on the car? % (Round to two decimal places.) What is the effective annual return (EAR) on the car? % (Round to two decimal places.)