Geoffrey buys 48 shares of deegan pharmaceuticals at $6.15 each, and his broker charges him a commission of $81. how much did geoffrey pay for his stock? a. $376.20 b. $295.20 c. $450.30 d. $219.60

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?