Answer: 3 shelves
Step-by-step explanation:
12 ÷ 3.1 = 3.87…
Since this is more than 3 but less than 4, we can build 3 full shelves with a leftover.
Answer:
Me
12 is 50% of 24
7 is 20% of 35
9 is 10% of 90
20/60 is 33.33%
