Answers

2015-07-23T12:28:20+08:00
The 8 means between 7 and 70 are as follows;
14, 21, 28, 35, 42, 49, 56, and 63. Multiples of 7.
It is an Arithmetic Sequence.
7, _, _, _, _, _, _, _, _, 70
tn= t1 + (n-1) d
70= 7 + (10-1) d
70= 7 + (9)d
63= 9d
7= d
7 + 7 = 14
14 + 7 = 21 
21 + 7 = 28
and so on..
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2015-07-23T13:05:38+08:00
Which sequence are you in raf 7 to 70
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