identify which of the following is a rational algebraic expressions and which is not. Write YES if it is rational algebraic expression and NO if it is not.

1.6 / x-3
2.y²-1 / y³-3
3.3x-√y / 5√x
4.3x-√y / x+6
5.2x^-2-3 / x+6
6.2x^-2-3 / 5√x
7.18n+1 / n²+n-2
8.5x²+6x-11 / 1
9.6 / x+3
10.3+¹/2-x / z^-2 + 5

pahelp po hehe thank you!