Answer:
1/52
Step-by-step explanation:
If one addend is negative, you basically subtract it from the other number
-13 + 13 basically equals 13 - 13 =0
360/20 is equal to 18 sides
B...because there is no y intercept because of the 0,0 then you just turn the other one into a fraction and because the 1 is negitive the fraction is negitive
