According to Google, a Variable is <span>any factor, trait, or condition that can exist in differing amounts or types. If you type in variable in the Google search bar, it will give you the definition in a little box at the very top of the page :).
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Answer:

Step-by-step explanation:
It's an arithmetic sequence.
9 = 11 - 2
7 = 9 - 2
5 = 7 - 2
3 = 5 - 2
A) next three terms: 3 - 2 = 1, 1 - 2 = -1, -1 - 2 = -3
B) Common difference = -2
C) Recursive Function:

D) Explicit Function:

a₁ - first term
d - common difference
Substitute a₁ = 11 and d = -2:

A. 18
Formula for area is LxW.
Divide 144 by 8 and you get 18.
Answer: x<97/12 or in decimal form x<8.083