Answer:
C (1 2/3)
Step-by-step explanation:
This is a division problem.
10 pieces total; 5 eaten
5 pieces eaten split evenly between John and 2 friends
5/3 = 1.667
1.667 = C
b and e
6³ = 216
9² = 81
3⁴ = 81
18² = 324
6³ = 6 · 6 · 6 = 36 · 6 = 216
9² = 9 · 9 = 81
3⁴ = 3 · 3 · 3 · 3 = 9 · 3 · 3 = 27 · 3 = 81
18² = 18 · 18 = 324