4students spent 12$ on a school lunch. at this rate, find the amount 10 students would spend on the same school lunch..

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?

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square

4+(2+x) can you me solve this problem