Find the value of x.
140°
40
2x
A. 50
B. 90
C. 20
D. 70

What is the area of the triangle 10 13 12

What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3

Someone answer this asap for the length, in feet, of a rectangular rug is represented by the expression 5x² + 2x. the width, in feet, is represented by the expression 3x². which expression represents the perimeter, in feet, of the rug? a. 8x² + 2x b. 8x² + 4x c. 16x² + 2x d. 16x² + 4x