It is arithmetic.
It starts at - 5,
the next item is 0 then 5 and next is 15 ...
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It isn't geometric. You are not multiplying by 5
The second term must be and not- 5 * 5 = - 25
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A Fibonacci series adds the previous two terms together to get the next term
Usually it starts at 0, but it doesn't need to.
0,1,1,2,3,5,8,13,21,34 ....
to get the equation of any straight line we only need two points off of it, hmmm let's use P and Q here and then let's set the equation in standard form, that is
standard form for a linear equation means
• all coefficients must be integers, no fractions
• only the constant on the right-hand-side
• all variables on the left-hand-side, sorted
• "x" must not have a negative coefficient


Answer:
10.4
Step-by-step explanation:
x+4x-2=50
5x-2=50
5x=52
x=52/5 or 10.4