A rational number is a number that can be written as a ratio. That means it can be written as a fraction, in which both the numerator (the number on top) and the denominator (the number on the bottom) are whole numbers. The number 8 is a rational number because it can be written as the fraction 8/1.
Answer: Well it will be very simple by swaping the place of the variable example we bring 19 to the left side to minus with -5 then bring it back to the right side ( that is already 2) then we dived and that is 3. This means you can swap any variable back and forth. The rest are your opinoin.
For the first one number 1,2 and 3 are prime cause it can only be times 1, and 4 is a composite because it is not prime it can be times not only by 1 but by 2 two do you understand it more now or do you need help still
Is the that the entire question?
