Math problem!!!easy-7th grade level?

Question

here they are

1.)given the following sequence of #`s,find the next 3 terms of the sequence.

1,1,2,3,5,8,13...

how would you classify this type of sequence?

2.)given the following sequence of #`s,find the next 3 terms of the sequence

1,3,9,27...

how would you classify this type of sequence?

Answer 1

1,1,2,3,5,8,13, 26, 52, 104

1,3,9,27, 81, 243, 729

Answer 2

1,1,2,3,5,8,13,21,34,55

1,3,9,27,81,243,729

Answer 3

1), the first one is this: you add the last two numbers together and that gives you the answer for the next number in the sequence. The next number is 21, and after that is 34, after that, 55. This one is called the "Fibbinacci Sequence".

2), the second one is the last number of the sequence times three.

Answer 4

1) arithmetic sequence,  each number is the sum of the two previous numbers

21, 34, 55

2) geometric sequence, each number is the previous number multiplied by three

81, 243, 729