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Lesson 2.7 Step Functions: The greatest integer function is the function f such that for every real number x, f(x) is the greatest integer ≤ x. Rounding down or the floor function Denoted, On your calculator, MATH, NUM, 5 (INT) INT (2π) Describe all numbers x such that Describe all the numbers x such that How many buses are needed to transport s students if each bus can hold 44 students and no other means of transportation is used? Suppose it costs $50 to rent a bus in the last example. What will it cost to transport 300 students? Pages 131 – 133 8-13, 16, 19 - 21