Find a function (rule) that describes the sequence" 24, 21, 18, 15 and find the next three in the sequence.

24 - ? = 21

21 - ? = 18
18 - ? = 15

Then, do the same thing over again

15 - ? =

? - ? =

? - ? =

it is minus 3 but idk how to write the rule. can you help??

Arithmetic sequence

term(n) = -3n + 27

To find the rule that describes the given sequence, we need to identify the pattern. Looking at the sequence 24, 21, 18, 15, we can observe that each subsequent term is obtained by subtracting 3 from the previous term. Therefore, the rule for this sequence is to subtract 3 from each term to get the next one.

Using this information, we can find the next three terms in the sequence:

15 - 3 = 12
12 - 3 = 9
9 - 3 = 6

Therefore, the next three terms in the sequence are 12, 9, and 6.