Please help.

Consider the diagram. which line segment has the same measure as st? rx tx sr xs

If a || b and e || f , what if the value of y ?

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.)