1.Since its a circle it is 360° the slice is 1/12 of this so 360/12=30°
2. 360/20=18 mutiply by 3 since they said 3 slices
18×3=54°
3. 360/9=40 Multiply by 2 since they asked for 2 slices
40×2=80°
4.each pizza(360) was divided into 40 degrees so divide 360/40=9 theres 9 slices in 1 pizza
There is 2 so multiply 2×9
18 people ate pizza
Rest will be in comments
