Answer:
Step-by-step explanation:
Let's convert every measurement into inches for now.
90 inches = 90 inches
4.5 feet = 54 inches
4.5 yard = 162 inches
Now, 90 + 54 + 162 = 306 inches
90 inches = 7.5 feet
4.5 feet = 4.5 feet
4.5 yard = 13.5 feet
Now, 7.5 + 4.5 + 13.5 = 25.5 feet
90 inches = 2.5 yards
4.5 feet = 1.5 yards
4.5 yards = 4.5 yards
Now, 2.5 + 1.5 + 4.5 = 8.5 yards
Hope this helps