Question

F(x)=3/4x+5/6 when f(12)

Answer 1

F(12)=($\frac{3}{4}$ x 12) + 5/6
       = 9+$\frac{5}{6}$
       =9$\frac{5}{6}$
       =59/6

Answer 2

Substitute 12 in for x

f(12) = (3/4)12 + 5/6

f(12) = (0.75 x 12) + 0.83

f(12) = 9 + 0.83

f(12) = 9.83