Well, you don't have any options.
But a mixed number for 12.16 would be 12 4/25. Hope it helps! :)
B. if you think it is not correct don't put it in
All the triangles are isosceles meaning that they have to sides that are equal
ANSWER
The correct answer is C
EXPLANATION
We want to find the quotient:

We multiply by the reciprocal of the second fraction:

We cancel out the common factors to obtain:

We multiply to get

This simplifies to :

The correct answer is C