The science club went on a two day field trip . the first day the members paid $60 for transportation plus $15 per ticket to the planetarium the second day they paid $95 for transportation plus $12 per ticket yo the geology museum write and expression to represent the total cost for two days for the n members of the club.

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?