Answer:
1023
Step-by-step explanation:
2^0+2^1+2^2+2^3+2^4+2^5+2^6+2^7+2^8+2^9
1+2+8+16+32+64+128+256+512=1023
D reflection
think of it like a mirror when u look at the mirror its an exact match to what u are seeing
3 faces
