(-3/4) (-4/7) (-2/3) = ?? (-2/3) (-3/4) (4/5) = ??

(2/3) (-9/10) (5/6) = ??

answer has to be a fraction

What is the correlation coefficient between the variables? round to three decimal places. enter your answer in the box

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?

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