Since (x+90) and 4x are vertical angles, and vertical angles are congruent, you can set them equal to each other.
x+90=4x
90=3x
x=30
4y + x + 9
can't be simplified, factored, expanded, graphed, solved, or evaluated.
So what is your question ?
Assuming the sequence goes on like this 11,-33,99,-297,891,...,
its general formula is

So, the 9th term is
Yes they do. Notice that for each step in x there a +4 in y. If you want an equation we can set it up with the inforation given

Yes theres a relationship because for every meter she runs it takes her 4 minutes for each.
(Kelly must be really tired or is just really slow)
Answer:
12.
Step-by-step explanation:
We have been given format of different numbers. We are asked to find the missing value for our given format.

Taking square root of 9 and 16 we will get,



Similarly, we can see that by taking the square root of all the on the left side of equation and adding them we get right side of equation.






Upon taking square root of 25 and 49 we will get,



Therefore, the missing number of our given sequence is 12.