Consider the equation 256 = x4. how many real solutions of x exist?

If m 17 27 90 63 ** picture is attached

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

Me. i can't figure out this question. give an explanation too. .