Whats the answer for this question i don't really understand it ? ?

You decide instead to take the train there. the train will take 135 minutes. convert this into hours and minutes.

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.

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