Answer:
concave pentagon I'm thinking
Ratio of dog bark is 4:5
Multiply that by 20 each side
Ratio is now 80:100
So 80%
If they walk past 45 time you just have to multiply the ratio 4:5 by 9
36:45
So the dog would bark 36 times
-9
There are the same signs so you'd just add them together and use whatever sign they are..
13/15-1/4
=52/60-15/60
=52-15
______
60
=37/60
<em>hope</em><em> </em><em>it</em><em> </em><em>helps</em><em>.</em><em>.</em><em>uu</em><em> </em><em>frnd</em>
Answer:
<h2>

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<h2> </h2><h2>

</h2><h2>
</h2><h2>

</h2><h3>
</h3><h3>

</h3>
solution,




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Hope this helps...
Good luck on your assignment..