We are asked to make an algebraic expression for the given situation. The key phrase is ... times ... This indicates that we should multiply two things.
... * ...
The two terms that we are adding together are 12 and a number g. Since 12 comes first in the statement, it should be on the left-hand side of the multiplication.
12 * a number g
When we say a number g, this just tells us that g indicates an arbitrary number. So, we can write an algebraic expression by only writing g.
12 times a number g
12 * g
Note that this is only one of multiple ways to algebraically express the given statement.
