Which statement best demonstrates why the following is a non-example of a polynomial?

33 y squared all over x squared − 62y2xz − 35z2y2

the expression has a variable raised to a negative exponent.
the expression has a negative coefficient.
the expression has a variable raised to a fraction.
the expression has a variable in the denominator of a fraction.

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?

Frank owns a $141,000 home, for which he has a 30-year mortgage in the amount of $700 a month. once he has paid off mortgage, how much will he have paid in investment? a. $111,000 b. $109,000 c. $120,000 d. $141,000

Aprofessional hockey team has noticed that, over the past several seasons, as the number of wins increases, the total number of hot dogs sold at the concession stands increases. the hockey team concludes that winning makes people crave hot dogs. what is wrong with the hockey team's conclusion? a) it does not take into account the attendance during each season. b) it does not take into account the number of hamburgers sold during each season. c) it does not take into account the number of concession stands in the hockey arena. d) it does not take into account the number of seasons the hockey team has been in existence.