An airplane on autopilot took 9 hours to travel 6,399 kilometers. what is the unit rate for kilometers per hour?

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?

What is the result of converting 60 ounces to pounds remember there are 16 ounces in a pound

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