Choose the more precise measurement in the pair. a .) 6.7 mi or b.) 6 mi

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

In a column proof the right column states your reasons

The price of a dozen eggs was $1.63. suppose the price increases m dollars per dozen and then the price decreases $0.12 per dozen. which expression represents the current price of eggs after the two price changes?