LAST question !! need help with number 9 but if u can help me with #8 ur an angel

8) interior angle = 160

9) x = 20

Step-by-step explanation:

8)

18-gon has 18 sides

The formula for sum of interior angles for an 18-gon is:

(18x180)-360 = 2880 degrees

2880 degrees / 18 angles = 160 degrees

9)  

exterior angles = 360 degrees

360 = (3x-2)+(x+8)+(4x+9)+(2x-1)+(3x)+(4x+6)

360 = 3x-2+x+8+4x+9+2x-1+3x+4x+6

360 = 17x+20

17x = 340

x = 20 degrees

location: point 0

step-by-step explanation:

well, -8 to 10 on a number line is 18 spaces.

1/9 of 18 is 2.

so, 4/9 of 18 must be 8.

8 spaces from -8 (a) is 0.

so, 4/9 of the way from -8 to 10 is 0!

entering that problem on the tube might get you an answer