You will need

Sweater
22in Chest - 4 Balls
24in Chest - 4 Balls
26in Chest - 5 Balls
28in Chest - 5 Balls
30in Chest - 5 Balls

Tank Top
22in Chest - 3 Balls
24in Chest - 3 Balls
26in Chest - 4 Balls
28in Chest - 4 Balls
30in Chest - 4 Balls

Cardigan
22in Chest - 4 Balls
24in Chest - 4 Balls
26in Chest - 5 Balls
28in Chest - 5 Balls
30in Chest - 5 Balls

3.75mm and 4mm Knitting Needles
1 Stitch Holder for Sweater and Tank Top
2 Stitch Holders for Cardigan
5 (5 : 5 : 6 : 6) Buttons for Cardigan