F(3) = x2 - 4x
what is the answer to this problem

Answer this question! 30 points and brainliest!

Nikolas calculated the volume of the prism. his work is shown below.

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%