Answer:
111°
Step-by-step explanation:
7 sides
sum of angles= (180×7)-360
1260-360=900
158+126+125+121+139+120+x=900
789+x=900
x=900-789
x=111°
$9
5 x 9 = $45
Or
9+9+9+9+9
-6p^3+8p^2-10p
1 $ = 100 cents
1.5 $ = 150 cents
1.50 $ a percentage of 200 cents = (150/200)100= 75%