Answer:
To convert the length of the shelf from feet to inches, you multiply by 12 (since 1 foot equals 12 inches):
0.45 feet * 12 inches/foot = 5.4 inches
To convert the length of the shelf from feet to yards, you divide by 3 (since 1 yard equals 3 feet):
0.45 feet / 3 feet/yard = 0.15 yards
