How many degrees are in a 1/ 4 turn

Answer this 30 points and brainliest!

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

The general form of the quetion of a circle is ax^2+by^2+cx+dy+e=0 where a=b=0 if the circle has a radius of three units and the center lies on the y axis which set of values of a, b, c, d, and e might correspond to the circle