f(t)= 3t - 5; t=5, 10, 20, f(m)= 2m − 4 ;m = 2, 0, 6, f(x)= -3x − 1 ;x = 3, 6, -10, f(a)= 2a - 9 ;a = 2, -5, 6, D(n)= 5n − 1 ;n = 2, 9, 10, g(y)= y + 3 ;y = 4, 15, 7, c(k) = 4k − 2 ;k = 3, 10, 14, n(p)= p − 1 ; p = 5, 4, 30, f(r)= 2r ; r = 3, 6, 18, z(b)= 6 − b ; b = 2, -4, 4.

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