More HELP!!.I’m kinda stuck in most problems

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

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

The volume of the sun is approximately 1 × 10^18 cu km, while the volume of jupiter is approximately 1 × 10^15 cu km. which of the following is true? a. the volume of jupiter is approximately one thousand times the volume of the sun. b. the volume of jupiter is approximately one hundred times the volume of the sun. c. the volume of the sun is approximately one thousand times the volume of jupiter. d. the volume of the sun is approximately one hundred times the volume of jupiter.