Step-by-step explanation:
Each interior angle=140°
(n-2)180°/n=140°
180°n-360°/n=140°
180°n-360°=140°n
180°-140°=360°
40°n=360°
n=360°/40°
n=9
Hence, the number of sides of the polygon is 9.
It is nonagon .
15% of 33 =
= 15% * 33
= 0.15 * 33
= 4.950 students in that class are left-handed
Answer:
c
Step-by-step explanation:
i did it in a test and i used a calculator
-1/2w-3/5=1/5w
-5w-6=2w
-5w-2w=6
-7w=6
w = -6/7