f(x)=3/4x+5/6 when f(12)
Substitute 12 in for xf(12) = (3/4)12 + 5/6f(12) = (0.75 x 12) + 0.83f(12) = 9 + 0.83f(12) = 9.83
f(12)=(\(\frac{3}{4}\) x 12) + 5/6 = 9+\(\frac{5}{6}\) =9\(\frac{5}{6}\) =59/6