I am stuggling with this question, please help!!

What is this inequality notation? t is less then or equal to 2

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.)

What is the slope of the line that contains the points (-2,1) and (0,-3)