Awoman has 8 black shoes, 5 brown shoes, 2 red shoes, and 5 boots. what percentage of her collection is boots?

Which of these is and example of a literal equation? a) 6+30=6^2 b)3x-4y c)12=9+3x d)ax-by=k

Is a positive integer raised to a negative power always positive

Anormally distributed data set has a mean of 176.3 and a standard deviation of 4.2. what is the approximate z-score for the data value of 167.9? 2.00 −2.00 8.4 −8.4