Explain one way to add 3 digit numbers

5x−4≥12 or 12x+5≤−4 can you with this problem

He trapezoid is composed of a rectangle and two triangles. what is the area of the rectangle? what is the total area of the triangles? what is the area of the trapezoid? ? a) 42 cm2; 27 cm2; 69 cm 2 b) 54 cm2; 27 cm2; 81 cm 2 c) 108 cm2; 27 cm2; 135 cm 2 d) 108 cm2; 13.5 cm2; 121.5 cm 2

Aiko jumped rope for 20 min and stopped at 8: 05 when did she start