Yes.
It is rational.
9/2
Yes.
Sqrt(18/2) =Sqrt(9) =3 which is rational.
59 cannot be written as a mixed number while 59 halves as a mixed number is 29 and 1/2.
yes
Yes.
Yes 9/10 is a rational number.
Its 3 which is a rational number
0.75 or three quarters is rational.
Yes.
Yes.