Question

The number 0.2 can be written as 2/10, so it's a rational number

Answer 1

correct, all decimals and fractions are rational numbers.

Answer 2

Correct

Explanation:

A rational number is the one you can express as the fraction or quotient of two integers, a / b. The denominator b must be different from 0.

As 2 and 10 are integers, the fraction 2/10 is equal to 0.2.