How do you write .049 in expanded form?

An eight-sided die, which may or may not be a fair die, has four colors on it; you have been tossing the die for an hour and have recorded the color rolled for each toss. what is the probability you will roll a brown on your next toss of the die? express your answer as a simplified fraction or a decimal rounded to four decimal places.

Do 12/14 and 8/10 have the same value? explain your answer.

State one method by which you can recognize a perfect square trinomial.