If 34.78x divided by 12.2y equals 238.8, then what is x and y?

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%

Can someone me with this graph problem by the way i need to know the answers by today since this assignment is due ! !

What type of symmetry does a rhombus have?