Any number you like. Since there is no sequence defined you can chose whatever you like and make the 7th term whatever you like.
On a more serious note, though, given a set of six of fewer numbers, there are infinitely many different rules that will generate those six points and, by choosing the right one, you can make the seventh term whatever you like. The simplest way is to fit a polynomial of order 6 to the seven point (easy to prove this is always possible).
-36 your adding -5 to the numbers
Find the generating equation for the sequence and then substitute the values 5, 6 and 7 (respectively) for the counter - which is usually n.
91
Each number in the sequence is the previous number divided by 4. Therefore the 7th term starting from 1024 is 0.25. The first 8 terms are: 1024, 256, 64, 16, 4, 1, 0.25 and 0.0625.
The 9th term of the Fibonacci Sequence is 34Fibonacci Sequence up to the 15th term:1123581321345589144233377610
-1
If the first term is 12 and the seventh term is 36, then we have gone up 36-12 in the space of 6 term changes. This is 24 per 6 changes, which can be written as the division 24/6. This works out as 4. Thus the common difference in the sequence is 4.
1 - 2 - 4 - 8 - 16 - 32 - 64 the sequence doubles
-36 your adding -5 to the numbers
Find the generating equation for the sequence and then substitute the values 5, 6 and 7 (respectively) for the counter - which is usually n.
every next term is 4 smaller than previous so 7th term = -23
91
Each number in the sequence is the previous number divided by 4. Therefore the 7th term starting from 1024 is 0.25. The first 8 terms are: 1024, 256, 64, 16, 4, 1, 0.25 and 0.0625.
The 9th term of the Fibonacci Sequence is 34Fibonacci Sequence up to the 15th term:1123581321345589144233377610
49
It is the sequence of first differences. If these are all the same (but not 0), then the original sequence is a linear arithmetic sequence. That is, a sequence whose nth term is of the form t(n) = an + b
Well, it would depend what the sequence was...? If the sequence was 2,4,6,8,10,12,14,16,18,20, then the 9th term would be 18!