What is the coefficient of x2y3 in the expansion of (2x + y)5

Ineed ! the person who answers and shows their work on they got the answer first will be marked the !

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?

2/3(-6y+9x) expand each expression using the distributive property