Identify the constant of proportionality in the equation. 4y = 48x
A) 1
B) 4
C) 12
D) 48

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%