Which expression is equivalent to
5
8

Find the sum of the measure of the interior angles of a polygon of 9 sides ; of 32 sides

He concluded that a heavier object dropped from the same height as a lighter object will land

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%