Will give brainliest the sequence 7 21 63 the number of jumping jacks justin did each week, starting with the first week of him working out. a. is the sequence arithmetic or geometric? how do you know? b. what is the recursive rule for the sequence? c. what is the iterative (explicit) rule for the sequence.

A

this is a geometric sequence since there exists a common ratio r between the terms

r = = = = 3

B

to obtain the next term in the sequence multiply the previous term by 3

= 3 ← recursive rule

C

the n th term of a geometric sequence is

=

where is the first term in the sequence

= 7 × ← explicit rule

you should talk someone who owns the website about it. you did not deserve to have all that hard work and time taken away. id watch videos of little puppies to cool you down, and maybe some nacho cheese doritos.