i. 23 145 24 81, 231 ii. 6 243 6, 7 14, 309 7 23, 307, 310 7, 8 316 7, 11 308 6–8 46 8 421 9 387 16 312 iii. 7 156 8 14 20 159, 392 iv. 7 212, 251 13 207