For this case we have that by definition, the GFC (greatest common factor) of two numbers is given by the greater number that is a factor of both numbers. Then, let:

We decompose into factors:
15: 1,3,5,15
18: 1,2,3,6,9,18
The GFC is 3.
So, we have that the GFC of the expressions is:

Answer:

George washington is the first president
$299 and $199 adds up to 498, including the tax rate 7.5% and your total is $535.35
Answer:
see down
Step-by-step explanation:

The answer to this question would most def be 23