Answer:
2/3
Step-by-step explanation:
There are 10 sides becuase the equation set up is 
and equal it to 144.
Solve for n and get 10
Answer:
C
Step-by-step explanation:
I don't know for sure, but I am pretty sure this is it.
This is what I got I dont know if It should be an equation but that's all i can get to, gl
Answer: 4
Step-by-step explanation:
Set them equal to each other since they're both equal to y
3x-5=.5x +5
add 5 to both sides
3x=.5x+10
subtract .5x from both sides
2.5x=10
divide both sides by 2.5
x= 4
