I23 = i20+3
Use the example as a model. Simplify the
expressions.
= i20 x 1
737
x ;3
= 15 x ;
= 1x is

- I^20+1 i= /2 i^2= -1 i^3= -i i^4= 1 for every four it repeat itself. 4, 8, 12, 16, 20. therefore i^20=1 1+1=2.

Sorry if I'm wrong!

there will be 35 boys in each team. : )

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.