Is this linear or non linear?

What expression is equivalent to (2x-1)(x-3)?

Plz a. s. a. p.the table shows the number of male and female contestants who did not win a prize. what is the probability that a randomly selected contestant won a prize, given that the contestant was female? write the probability as a percent. round to the neares tenth, if needed.

Which of the following parabolas opens down?