Chris joined a website that offers a special rate for music downloads to its members. the membership costs $19.95 and then you can download albums for $3.95 each. at the end of a year, chris has spent $63.40 on the site. which equation can be used to find how many albums chris downloaded during the year, a ?

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?