Need help. with this problem

Which of the following three dimensional figures has a circle as it’s base

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%

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?