400 is a number
20x20=400 40x10=400 5x80=400 2x200=400 1x400=400
30% of 400 = 30% * 400 = 0.3 * 400 = 120
yes, 400 + 400 is 800
400
12% of 400= 12% * 400= 0.12 * 400= 48
400 400 and a 428 400 and a 428 400 and a 428 400 and a 428 400 and a 428 400 and a 428 400 and a 428 400 and a 428 400 and a 428 400 and a 428 400 and a 428 400 and a 428 400 and a 428 400 and a 428 400 and a 428 400 and a 428 400 and a 428 400 and a 428 400 and a 428 400 and 428
400
400
400
400
400
It is 400
20x20=400 40x10=400 5x80=400 2x200=400 1x400=400
400
400
400-800 = -400
4003 = 400 x 400 x 400 = 64000000