Guys since someone want to delete my question what is 14a+18 i dont know if its 32a or not

It is NOT. See below.

Step-by-step explanation:

That is only the second or third time I've seen that on . You cannot add 14a and 18. The 14 is coupled with a variable (a). The 18 is not.

Rule: You cannot join two number whose variables are not exactly the same.

The answer to 8a^2b + 8ab^2 is 8a^2b + 8ab^2 unless you know about the distributive property but even then, you cannot destroy that plus sign.

The answer to 14a + 18 is 14a + 18. Don't destroy the + sign.

Edit

You can factor them. That would use the distributive property. 2*(7a+9) would be the way to factor it. But that plus sign never goes away under these circumstances.

since proposition states that a number is greater than 25, if is true then the number must actually be greater than 25.

this implies that all possible options, except 24, can be accepted