exam Maths Puzzle Numerical Ability

Please help:
The daily low temperatures in degrees Fahrenheit for a certain week were -3,1,4,-5,-10. What is the range of low temperatures for that week?

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exam Other Question

9.) Find the slope if it exists

x = -7

m = ______ (Simply your answer, type an integer or a fraction, type N if the slope is undefined) The following table gives the winning percentages of the top five coaches in NFL history. What fraction of his games has each coach won?

Don Shula 0.676
George Halas 0.672
Tom Landry 0.606
Curly Lambeau 0.624
Paul Brown 0.667