4. Find f (2), f (3), f (4), and f (5) if f is defined recursively by f (0) = f (1) = 1 and for n = 1, 2, . . . a) f (n + 1) = f (n) − f (n − 1). b) f (n + 1) = f (n)f (n − 1). c) f (n + 1) = f (n)2 + f (n − 1)3. d) f (n + 1) = f (n)/f (n − 1).

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Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line