Tính định thức cấp 4 5. Giúp mình vs ạ. File bài ở dưới

For the equations below which statement is true ? -2x=14 6x=-42

Which of the choices shown could be used to prove that aacp=abcp ?

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%