Some one please me find the volume for this rectangular prism

Click on the graphic until you find the right quotient. (36xa - 30xb) ÷ (-6x2)

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%

What’s -11-33k and factor each expression completely