Evaluate each function.
k(a) = |-2a + 3| - 1; Find k(3).
g(x) = 4^2x-1 + 7; Find g(1).
f(x) = |8x^2 - 5x + 3|; Find f(-2).
h(x) = -3x + 9; Find h(-1 + x).
f(n) = 5n - 1, Find f(- 3n).
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