How many unique non-self-intersecting paths are there between opposing vertices of a cube along the edges of that cube?

Find the missing factor. 7s2 + 25s + 12 = (s + 3)( ).

Quick translate "x is 12 units from 20" into an equation. what are the values of x being described? if you can answer any of my other questions that'd be great too

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%