Answer:
16 folders
Step-by-step explanation:
The first store has 1152 possible combinations. The second store has 72 combinations without the folders.
If we divide 1152 by 72, we have 16. Therefore the second store needs 16 folders to have the same number of combinations as the first store.
He isn’t correct because both 0.4 and 0.400 is the equivalent number
C- Commutative property.
Explanation: The numbers are flipped around, but still give you the same answer!
7.158 * 10^9 rounds to 7 * 10^9
7 * 10^9 = 7,000,000,000