State which of the following are polynomials and which are not ? Give reasons. p^(-2)+1

State which of the following are polynomials and which are not ? Give reasons. m^(2)-sqrt(2)m+2

State which of the following are polynomials and which are not ? Give reasons. 4z^(2)+1/7

State which of the following are polynomials and which are not ? Give reasons. (1)/(x)-1(x!=0)

State which of the following are mathematical statements and which are not? Give reason. For each counting number x, x +0=x

State which of the following are mathematical statements and which are not? Give reason. What time is it ?

State which of the following are mathematical statements and which are not? Give reason. Today is not Sunday .

State which of the following are mathematical statements and which are not? Give reason. x+7 =18

State which of the following are mathematical statements and which are not? Give reason. She has blue rays

State which of the following sets are finite and which are finited. Give reasons for your answer. (i) A={ x : x in N and x lt 100} (ii) B={x : x in N and x le 5} (iii) C={1^(2), 2^(2), 3^(2),....} (iv) D={1,2,3,4} (v) {x : x is a day of the week}