Answer:

1. 31.49 inches

2 10.16 cm

3 0.75 m

4 38.1 cm

5 0.98 ft

Explanation:

1. 80 cm × 1in/2.54 cm = 31.49 inches

2. 4 in × 2.54 cm/ 1 in = 10.16 cm

3. 75 cm × 1m/ 100 cm = 0.75 m

4. 15 in × 2.54 cm/1 in = 38.1 cm

5. 30 cm × 1 ft/ 30.48 cm = 0.98 ft