How many edges does this shape have? 6 , 9 , 10 , 12

Which is the correct excel formula for the 80th percentile of a distribution that is n(475, 33)? =norm.dist(80,475,33,1) =norm.inv(0.80,475,33) =norm.s.inv((80-475)/33)?

What is the sum of these mixed numbers 4 2/3+ 3 1/9

What is the slope of the line passing through the points (-5, 7) and (-3,5)?