Monthly rate = 1.25% Date Payments Purchases Balance Number of Days Product/Sum 9/1 - 9/5 $387.52 5 $1,937.60 9/6 $50.00 $337.52 1 $337.52 9/7 - 9/18 $ $ 9/19 $62.26 $399.78 1 $399.78 9/20 - 9/30 $ $ Total 30 $ The average daily balance = ÷ 30 = $ . Finance charge = monthly rate x average daily balance = $ . New balance = previous balance - payment/credits + finance charge + new purchases = $ .

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?