Which of these numbers is not rational?

The correct option is A)

Step-by-step explanation:

Consider the provided numbers.

, 0.25, and

We need to find which of them is not rational number.

Rational number: A number   is said to be rational, if it is in the form   of p/q. Where p and q are integer and   denominator is not equal to 0. The decimal expansion of rational numbers may terminate or become periodic.

Now convert each of the number in decimal form as shown,

,

Here the decimal expansion of the number is neither terminating nor repeating so it is not a rational number.

0.25,

The decimal expansion of the number is terminating, so it is a rational number.

The decimal expansion of the number is terminating, so it is a rational number.

3 is a rational number.

Hence, the correct option is A)

81 seats

step-by-step explanation:

if you multiply 0.65 times 125 then you get 81.5 seats. well since you can't have half of a seat you have to round down and get 81 seats in the no children zones. that leave 44 seats outside of the no children zone.