Margaret Foster wants to buy a new camper in 6 years. she estimates the camper will cost $6,400 assume Margaret invests $3,800 now at 8% interest compounded semiannually will Margaret have enough to buy her camper at the end of the 6 years?

Ed Sullivan deposited $14,000 at roll bank at 8% interest compounded semiannually. What was the effective rate (APY)? round to the nearest hundredth percent