The area of a rectangle can be found by multiplying the length of the rectangle by the width of the rectangle. The area of a rectangle is 70k9m12 feet. If the width of the rectangle is 5k3m4 feet, which expression represents the length of the rectangle in feet?

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%