39 students have a pet because 130 times .30 which represents thirty percent gives you the answer
Answer:

Step-by-step explanation:
ΔABC and ΔADB are similar (AAA).
Therefore the corresponging sides are in proportion:

Substitute:

<em>cross multiply</em>

Answer:
2.8
Step-by-step explanation:
using cosine rule
= 
s =
= 2.842 = 2.8
Answer:
78
Step-by-step explanation:
i am using my sisters account hehe thats what u get for taking a shortcut boyyyyyyyyyy
I'm sorry no one can answer and where is the question?
Please put in the question and I might be able to help!