Atriangle has vertices (–2, –3), (3, 5), and (8, –1).
b. write a matrix expression to represent rotating the triangle 90° clockwise. evaluate the matrix expression and list the coordinates of the vertices of the transformed figure.

Maryann’s friends loved her bulletin board, and 4 of them asked her to make one for their homes. she offered to make each of her friends a replica of her bulletin board that measures 2 meters by 3 meters. how many kilograms of burlap should maryann collect to complete the bulletin boards for her friends? maryann should collect kg of burlap.