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:

90°/right angle I believe
<span> -1/2 - (-3/4)
= </span><span> -1/2 + 3/4
= - 2/4 + 3/4
= 1/4
hope it helps</span>
Answer:
no!!
Step-by-step explanation:
it's b!! simply solve for y by subtracting both sides by 3x and then dividing both sides by 2