The composite function that gives the oldest sibling's age in terms of the youngest is; 2(¹/₂x + 6)
Let x be the age of the youngest sibling.
Thus, the composite functions from the given parameters are;
Age of the middle sibling is; ¹/₂x + 6
Age of oldest sibling is; 2(¹/₂x + 6)
For example, if the youngest sibling is 8, then:
Age of the middle sibling is; ¹/₂*8 + 6 = 10
Age of oldest sibling is; 2 * 10 = 20
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