3. write an expression using the fewest terms possible that is equivalent to x+x+x+x-20

4x - 20

Step-by-step explanation:

Combine like terms (those with the same amount of variables:

x + x + x + x = 4x

4x - 20 => Note: You cannot combine these two terms, because they do not have the same amount of variables (one having one variable (x), the other being a constant (no variable) ).

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I think the answers would be the square root 81<97<100

Step-by-step explanation:

I'm not sure if this is correct, but I gave it a try