Cyrus deposits $ ⁢396.86 each month into an annuity account for his child's college fund in order to accumulate a future value of $⁢70,000 in 12 years. How much of the $70,000 will Cyrus ultimately deposit in the account, and how much is interest earned? Round your answers to the nearest cent, if necessary.

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?