401.22
Hope this helps!
May I have brainliest please? :D
Answer:
(D)9 divided by sin 60 degrees
Step-by-step explanation:
From the given figure, using trigonometry

Substituting the given values, we get





Thus, The length of the support AB is 9 divided by sin 60 degrees.
Sry but I need more information to answer the question. So so sry!
A = $520 B = $615
A is the answer