(2^8 * 5^-5 * 19^0)^-2 *(5^-2/2^3)^4 * 2^28 (please include answer and simple steps asap! thank you!)

Which expression is equivalent to? assume x > 0 and y > 0.

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.

What kinds of numbers make up the set of numbers called the real numbers? give examples when you explain a number type. there are a limited set of types of numbers, but an unlimited number of examples of these numbers.