Do you think the decimal 0 212112111211112... is rational or irrational A. Rational because it ends with 2
B. Irrational because it doesn't end but it isn't repeating
C. Rational, because it has a pattern where it always adds an extra 1 on each repeat
D. Irrational because it is weird

I think it is B

Step-by-step explanation:

A doesn't make sense..

D doesn't make sense..

So, it's between B and C.

Now, just because it has a pattern does not mean it is rational and I believe it would just be a Recurring decimal. So, I think it would be B.

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