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Two lines parallel to the same plane are parallel to eachother

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%

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?