<h3>GCF for given expression is:</h3>

<em><u>Solution:</u></em>
Given that,
We have to find the greatest common factor

First find the GCF of numbers 5, 35 and 15
<em><u>Find the GCF of 5, 35 and 15</u></em>
The factors of 5 are: 1, 5
The factors of 15 are: 1, 3, 5, 15
The factors of 35 are: 1, 5, 7, 35
Then the greatest common factor is 5
Now find the GCF of variables

Here, the common factor is 
<em><u>Thus, GCF for given expression is:</u></em>

The answer is 50.2^2. You find the area of the outer circle and the middle circle. Then subtract the area of the smaller one from the larger one.
Okay. 12 - 4 is 8. For the other question, you have to multiply the difference of that by 1/4. 8 * 1/4 is 2. The expression of (12 - 4) is four times the value of 1/4 * (12 - 8). and 2 is 1/4 the value of 8. The answers to this question are A , B, and C.