1) 1101 = 1 * 2^3 + 1 * 2^2 + 0 + 1 * 2^0 = 8 + 4 + 0 + 1 = 13
2) 10 = 1 * 16^1 + 0 = 16 + 0 = 16
3) 35 = 3 * 6^1 + 5 * 6^0 = 23
