Write the number 68 as a product of prime factors.
68

How do i do this activity, is appreciated

Could somebody me with this radical simplification?

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%