Look at the picture and answer the question

Combine the information in the problem and the chart using the average balance method to solve the problem.

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%

Find the maximum value of p= 4x + 5y subject to the following constraints :