What is the value of .3 the 4th power

What expression is equivalent to 42x-56y

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.)

How many verticies does a triangular prims have