Answer: The greatest common factor is 2.
Step-by-step explanation: We are given to find the greatest common factor of the following expressions:

<u>Greatest Common Factor:</u> The GCF of two or more numbers (expressions) is the greatest factor that divides all the numbers or expressions.
We have

Therefore, the greatest common factor will be

Thus, the required greatest common factor is 2.
Answer:
a=4.2
Step-by-step explanation:
6.4-a=2.2
so 6.4-22=a
4.2=a
Image result for factor 25 into prime numbers
25 is a composite number, and it is 5 squared. 25 = 1 x 25 or 5 x 5. Factors of 25: 1, 5, 25. Prime factorization: 25 = 5 x 5, which can also be written 25 = 5².
Answer:
25
Step-by-step explanation:
The whole straight line is 180 And the angles are adjacent.
180-125 which equals 55
trying to find X so subtract 30
55-30=25