Number system (IX) set -3

What is the value of √25?

Which of the following is an irrational number?

What is the decimal representation of the fraction 1/4?

Which of the following sets of numbers includes only rational numbers?

What is the result of 3 + 4 × 2?

Which of the following is a composite number?

What is the absolute value of -15?

Which of the following numbers is not a whole number?

If x = 3, what is the value of 2x + 4?

Which of the following fractions is equivalent to 2/3?