Answer:1. 20oz= 1.25 lb- Step-by-step: 16 oz = 1 lb, so 20 oz = 20/16 lb = 1.25 lb 2. 5c= 20 tbsp- Step-by-step: 1 c = 16 tbsp, so 5 c = 5 * 16 tbsp = 20 tbsp 3. 3000 lb- Step-by-step: 1 ton = 2000 lb, so 1.5 ton = 1.5 * 2000 lb = 3000 lb 4. 2.5 ft- Step-by-step: 12 in = 1 ft, so 30 in = 30/12 ft = 2.5 ft 5. 3.33 yd- Step-by-step: 3 ft = 1 yd, so 10 ft = 10/3 yd = 3.33 yd