You are adding 1.43 each time.
A quicker way of writing 254 + 254 + 254 is 3 x 254, or three multiplied by 254. The answer is 762.
254 is the mass number of the isotope Fm-254.
30% of 254= 30% * 254= 0.3 * 254= 76.2
254 = 254/1 or 508/2
62 126 254 and so on ... double the difference each time 6 - 2 = 4 14 - 6 = 8 30 - 14 = 16 62 - 30 = 32 126 - 62 = 64 254 - 126 = 128
1 x 254, 2 x 127 = 254
254 of them.
-110
28.2222
7x-254 = -247
127
254 is composite. (tip: all whole numbers ending in four are composite)