How many multiples of 17 are greater than -50 and less than 50.

Is this a polynomial function? i need to know asap

Given the quadratic function f(x)=3x^2-24x+49 a. use “completing the squares” to convert the quadratic function into vertex form b. state the vertex c. find the x and y intercepts d. graph the function

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g