Answer:
27 for the final result
Step-by-step explanation:
-28 + (-12) + 67
-40 + 67
27
Answer:
![x = 5](https://tex.z-dn.net/?f=x%20%3D%205)
Step-by-step explanation:
![7x+16x-56=59](https://tex.z-dn.net/?f=7x%2B16x-56%3D59)
![23x -56 = 5 9](https://tex.z-dn.net/?f=23x%20-56%20%3D%205%209)
![2 3 x - 5 6 + 5 6 = 5 9 + 5 6](https://tex.z-dn.net/?f=2%203%20x%20-%205%206%20%2B%205%206%20%3D%205%209%20%2B%205%206)
![23x=115](https://tex.z-dn.net/?f=23x%3D115)
![\frac{23x}{23} = \frac{115}{23}](https://tex.z-dn.net/?f=%5Cfrac%7B23x%7D%7B23%7D%20%3D%20%5Cfrac%7B115%7D%7B23%7D)
![x = 5](https://tex.z-dn.net/?f=x%20%3D%205)
Answer:
m∠B = 141°
Step-by-step explanation:
sides of polygon (n) = 7
sum of angles of polygon = {(n - 2) * 180°}
= {(7 -2)*180°}
= 5* 180°
= 900°
Now,
m∠B = 900° - 148° - 142° - 130° - 129° - 120° - 90°
m∠B = 141°