Calculate the number 549
NUMBERMANIA: Calculate the number 549 using numbers [1, 1, 7, 9, 73, 461] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.Correct answers: 1
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Hat manufactureIn 1866, a hat shaping machine was patented by Rudolph Eickemeyer and G. Osterheld. |