thirty-five samples of size 7 each were taken from a fertilizer-bag-filling machine at panos kouvelis lifelong lawn ltd. the results were: overall mean = 57.75 lb.; average range upper r overbar = 1.78 lb. a) for the given sample size, the control limits for 3-sigma x overbar chart are:

Peaches cost $4.29 per pound. find the cost of two and a quarter pounds of peaches.

Ms. sutton recorded the word counts and scores of the top ten essays in a timed writing contest. the table shows her data. how does the word count of an essay relate to its score in the contest? word count tends to decrease as the score decreases. word count tends to increase as the score decreases. word count tends to remain constant as the score decreases. word count has no apparent relationship to the score of the essay.

The sum of two numbers is 86, and their difference is 20. find the two numbers