The variable a represents Shadow’s age in months , and the variable p represents Shadow’s weight in pounds . At how many months did shadow weigh 7 pounds? P=7a

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%