An isosceles triangle has an angle that measures 54 which other angles could be in that isosceles triangle? Choose all that apply

Ineed with number 17 i don’t get it at alll

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 do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?