Which of the terms cannot be combined with the others?
11 x
X
-3 x
4x2

-3x

Step-by-step explanation:

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56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

here is your mark brainliest