There's no "why" because it isn't.
The greatest common factor of two numbers
is only even when the two numbers are even.
==> The greatest common factor of '14' and '21' is ' 7 ' .
Step-by-step explanation:
Question 5
y = - 3x
Question 6

7.41% as a decimal is 0.0741. :)
The answer for the first one is 4 the sacend one is 49/2 the thirst one is 33223