Examine the straight line decipher ion graph for a car. at what price was the car purchased?

Pls i’m dumb as heck i’ll give y’all so many points if that encourages you

In the diagram of circle a what is m

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%