2. potatoes are on sale at both grocery mart and baldwin hills market. at grocery mart, a 5 lb. bag of potatoes cost $2.85, and at baldwin hills market a 7 lb. bag of potatoes costs $4.20. which store offers the best deal on potatoes? how do you know? how much better is the deal?

Which pair of angles are vertical angles? ∠1 and ∠4 ∠1 and ∠2 ∠2 and ∠4 ∠2 and ∠3

If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.