I don't see any choices so I am going to give you what I think the answer would be. The rule would be 3x. That would be you could plug any number in and they would give you the sequence. Example:
x = 1
x times 3 = 3.
We could even find future things like:
x = 10
x times 10 = 30.
If we were doing it based on the algebraic expression it would be "multiplication" because we are multiplying. Hope this helped. :)
First, we are going to want to plug in the values we are given. In this case, we will end up with the equation:

From here, we can solve the equation to find
:

- Apply the commutative property to rearrange the terms on the right-side of the equation to make the distributive property more apparent

- Apply the distributive property

- Subtract 8 from both sides of the equation

- Divide both sides of the equation by -2
We have found that c = 1.
Answer:
The brother would be 13
Step-by-step explanation:
14 - 6= 8
There's an 8-year difference
21 - 8= 13
Answer:La media aritmética es la suma de todos los datos dividida entre el número total de datos :)
Answer:
PQ = 3.2
Step-by-step explanation:
PQ = PR - QR
PQ = 4.8 - 1.6
PQ = 3.2