Answer:
d(4) = -18
Step-by-step explanation:
[tex]d(1)=\frac{1}{12}\\\\d(2)=d(1)\cdot (-6)=\frac{1}{12}\cdot (-6)=-\frac{1}{2}\\\\d(3)=d(2)\cdot (-6)=-\frac{1}{2}\cdot(-6)=3\\\\d(4)=d(3)\cdot (-6)=3\cdot (-6)=-18[/tex]