Order from least to greatest.
9.7 ; 9.71 ; 9.68; 9.90
only answer if you know for sure

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500

Will mark name all segments skew to bc

If a and −a are numbers on the number line, which expression must give the distance between them? a) 0 b) a c) |2a| d) |a|