Which one is the answer ? ASAP it a test I have

Which expression converts 45 degree to radians

Suppose i pick a jelly bean at random from a box containing one red and eleven blue ones. i record the color and put the jelly bean back in the box. if i do this three times, what is the probability of getting a blue jelly bean each time? (round your answer to three decimal places.)

Typically a point in a three dimensional cartesian coordinate system is represented by which of the following answers in the picture !