Ann and tom want to establish a fund for their grandson's college education. what lump sum must they deposit at an 8.2% annual interest rate, compounded annually, in order to have $20,000 in the fund at the end of 15years?

Aefg - almn. find the ratio of aefg to almn. a)1: 4 b)1: 2 c)2.1 d)4: 1

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

Andy wants to find the distance d across a river. he located points as shown in the figure, then use similar triangles to find that d = 223.5 feet. how can you tell without calculating that he must be wrong? tell what you think he did wrong and correct his error. round your answer to the nearest tenth if necessary. andy must have used the wrong . the distance d is actually feet.