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Which of the following expressions is equal to 2x^2+8

Using inductive reasoning, what are the next two number in this set? 2,3/2,4/3,5/4,

Which statement shows that 6.24 is a rational number? a. 6.24 = 6.242424 b. 6.24 = 6.24 c. 6.24 = 68⁄33 d. 6.24 = 66⁄25