Can someone please tell me how to do this

Given f(x) = 2x^2- 5x+1, determine the function value f(2). do not f(x) = in your answer

Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.

Vinay constructed this spinner based on the population of teachers at his school according to vinays model what is the probability that he will have a male history teacher two years in a row