a reading group is making a set of 45 flashcards there are 5 students in the group each student should make the same number of cards they want to know how many cards students should make they find the asnwer with this number sentence 45÷5=9​

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?