Simplify.
9y+11z+7y−4z9y+11z+7y−4z
2y + 7z
16y + 7z
23yz
16y + 15z

Identify a1 and r for the geometric sequence an= -256(-1/4) n-1

Rena is building a 1: 180 scale model of a real castle. her model has a rectangular base that is 3 feet wide and 4 feet long what is the area of the base of the actual castle in square feet

Thee blue triangle has rotated from quadrant i to quadrant iii about the origin. describe the effects of the rotation on the coordinates of the blue triangle.