If you mean: 14 21 28 35 42 then they are 49 56 63 because they are all consecutive multiples of 7
1 squared, 2 squared, 3 squared etc so the next 3 terms are 36,49 and 64.
-1 -3
15 19
2.6 and 3.
1024-4096-16384
Yes Off Egg
Divide by three. 4, 4/3, 4/9
You are dividing by 3 each time, so the next 3 numbers are 8, 8 over 3 and 8 over 9.
1, -3, -7
67, 131, and 259.
It is 3 followed by 1
The next two terms are 1.4 and 1.48 because you keep adding the number by 0.08 to get your next terms.