Answer:
32-gon
Step-by-step explanation:
5402 = (n - 2) · 180
5402/180 = n-2
30 = n-2
32 = n
Both sides are the same so they are equal so...
4x+13=5x-15
x=28
Answer:
After it is simplified you get b= - ax/1-c
For every 4 white marables there are 9 black marables in the jar