Answer:
10,692
Step-by-step explanation:
GCF stands for Greatest Common Factor.
The way to find it is easy once you have the prime decomposition.
Search for common factors in the decomposition and take the least power, then multiply them all.
So, in our case, as the numbers are already broken down into prime factors
, we have

21 - 16.75 is 4.25. Do the problem on a calculator and you'll get it.
Answer:
The answer is 15 units is the answer boom
Step-by-step explanation:
She gets to the library at 5:30. Half an hour is equal to 30 minutes, and if she leaves at 5:00, she will be there in thirty minutes.